What are the Types of floor joists?
Even using a 2x12 the spacing for 20 feet will be less than 12 inches on center. I would recommend splitting the distance with a double beam perpendicular to the joist run. This will allow you to go up to 24 inches on center. Your span will only be ten feet aproximately this way. I would double the …beam. (2-2x12 joined together) Good luck. when building your beam make sure the laps on the beam are at least 6 foot apart and put a good wood glue on the 2x12s plus for added strength put 1/2 inch O.S.B. in between the 2x12 and I would also lag or bolt them together, at about 16 to 24 inches O.S.B. = Oscilating Strand Board. (MORE)
Answer . If it feels wet, you probably have a plumbing leak. It could be mold, also, which is another serious problem. I would contact a plumber and have him look at it. Hope this helps!
How do you locate the floor cross-board-joists in an older mobile home so as to install screws to fix a wood floor squeak?
Answer . Obtain a stud finder that uses sonar to locate these. Available at most major hardware stores - they work great for hanging heavy objects on a wall in the home, too.
unless you got a great deal on them, it would never make $$$ sense to use a microlam in lieu of a TJI joist or dimensional lumber. . .microlam is too costly if you have them on hand, I would call the manufacturer. . .they should be able to give you the numbers or send you a book with the span cha…rts (MORE)
Laminate wood flooring is the best to use if you have a larger dog. Laminate is easy to put down and even a 80 pound dog will not leave marks on it . Real hard wood flooring will show marks, but they can be sanded down to like new again.
No,if the joist is merely butted.The joists must sit on a bearer type of situation or have joist-hanger connectors.
That depends on how well supported the floor is and that depends on how far apart the joists are placed. The closer they are, the more weight can be supported.
16" 19.2" and 24" are the standards, because they will all divide evenly into a sheet of plywood deck mr graf is always wrong
There are more types of flooring than most people realize. More common types of flooring include carpet, hardwood, laminate, linoleum, vinyl, stone, and tile. Also becoming increasingly popular is flooring made from concrete, bamboo, and cork. These flooring options are gaining popularity because… of their eco-friendly nature. They (along with other options such as recycled carpet and reclaimed hardwood) are great choices for people looking to "go green" with their remodeling. That isn't the full extent of flooring options though. There is flooring made from leather, peach pits, and a number of other lesser known materials. If you want more information on different flooring types, a great place to look is findanyfloor.com. (MORE)
The joist dimension can vary according to requirements, but typically solid wood joists are 9-1/4" in height (2x10).
Where can guidance on drilling of timber floor joists to accommodate water systems pipework be found?
\n. \n. \nI'm not sure that there's a website or data base that would be helpful, but... \nI've been a carpenter for 35 years, if you have a specific question I can probably answer it for you. \nYou can post your questions in this forum or you can contact me directly on my message board. I stop …by every evening Sunday thru Thursday. (MORE)
My floors are out of level by about an inch in some places The subfloor is plywood and the support is truss joists that appear to be sagging in some places How to fix it?
\n. \n. \nThe short answer is: you're going to need to add some posts and maybe a beam under the trusses. \nIf you've really got an inch of deflection, something is very wrong. \nEither your trusses were undersized for the span they're crossing or they weren't designed/assembled properly. \n...or… somebody pulled out a wall they shouldn't have below the problem area. \nSorry to give you bad news, but that's the story. \nYou could try adding more trusses, but that means you're going to have to cut all the wires and pipes that run thru the trusses to get them in. (MORE)
It depends on what timber your joists are,how much water has been involved and for how long the water has been affecting the joists.Stop the egress of water and let the joists dry out.Take it from there.
That depends on the sise and the type of timber the floor boards are made of, However standard practice with flooring is 450mm centers or 600mm centers if the boards are thicker to allow for the extra 150 millimeter's
Try not to invite Aretha Franklin and Queen Latifah over for dinnerand your floors should hold up just fine.
Various hardwood flooring includes reclaimed flooring, hand hewn-beams, antique flooring, pine flooring, maple flooring, lumber flooring, fir flooring, and oak flooring.
How much larger than the pipe size should the drill bit being used to drill holes in the floor joist be?
Wrong Question.... You first determine the hole size required for the mine plan and then based on the air capacity and pulldown capacity of the drill rig you can determine the optimal drill pipe diameter to achieve productivity from the drill.. What size is your drill? Air Capacity in CFM, Pulldow…n Capacity.. What size does your drilled hole (diameter and depth) need to be to suit the mine plan (for the drill & blast process)? (MORE)
Flooring that is easy to clean.. Carpet is generally seen in the main area of the rooms and halls. Glue down carpets allow spills to not soak into a pad therefore last longer.. Bathrooms and entries often have porcelain tile because of their superior strength. Recently composite tile have been see…n in hotels. They give the look of marble or granite, but do not require the upkeep natural stone does. (MORE)
It depends on the species of wood the joists are made from but it should be in the low 11 to mid 12 foot range. Note that the span is the distance between the inside edges of the end supports, so a 12' joist on 2x4 walls will actually span only 11'5" (12 - 3.5 -3.5)
Joists are supported by the walls underneath them. The tops of your walls all need to be on the same plane, level. That will make your ceiling lines straight after drywall.
Not really. All joists will be the same whether you are working on a 1st or second floor, so your floor does not have a bunch of different levels. Usually we use 2 x 12 lumber, doubling joists which have walls above them or decreasing the spacing if you are at the limits of the span. example you hav…e a 22' span in a garage with living area above it, you would use 2 x 12 with 12" on center spacing. (MORE)
The space between the floor joists may be used as part of thereturn duct system. This is an appropriate use for space thatcannot be used for actual heating and air conditioning.
If you have access to the underside you can screw another 2 x 6 along side of each existing 2 x 6 to add strength. If you do not have access, you would have to remove the flooring and sub-floor to do this.
In a 2x8 floor joist spanning 12ft what is the largest diameter hole you can drill through for conduit?
1/3 the size of the joist, so approximately 2 1/4 in. Keep the hole a min. of 2" from the top of the joist. If it's 2" exactly, put a nail guard on the top. Don't put the hole within 6" of another hole. don't put the hole within 4" of a notch. This of course all depends on the joist spacing 12"…/16"/24"? And what the live load is anticipated? If it's a regular floor it's one thing, a monster tub is another. (MORE)
Yes. You will have to line the area with duct board or caulk allcracks and seal all holes at least. It can be used as a return, notcold air. Make sure there is no gas pipe running thru the area. what about to use the space for running warm air?
Walls. If you do not have a foundation the joists will set on beams which rest on concrete footers.
You can use a table or use one of the many software packages available. You need to know the area that the joists will support and have some idea of the weight of the contents that will be placed on the floor. IRC or IBC code books are available at the library.
Stay as much towards the middle of the 2x10 as you can, but it is not going to weaken it that much.
It will vary a bit depending on age of the building. Old rough sawn are 2x12, new ones are 1 1/2 by 11 1/2 with 1/8 inch variation either way on the width.
What is the advantage of open-web floor trusses and engineered i-joists compared to dimensional lumber?
Trusses you can run all the ducts and piping in the truss, makes a much neater and easier to finish basement. Engineered beams are stronger and can span wider distances.
The Colosseum was built on flat area on the floor of a low valley between the Caelian, Esquiline and Palatine and Velia Hills. An artificial lake which had been created by the emperor Nero had to be drained and filled. Local water streams were canalised. The lake had been fed by a water source from …the foundation of the Temple of the Divine Claudius on the Caelian. Thus, the local streams had to be canalised. Concrete was used to provide a solid foundation for the seating (which had a concrete shell). Underneath the partly brick and partly wooden floor of the arena (which wa86 Ã 54 m., 272x157 ft.) where the gladiatorial fights and the animal hunts were performed there was a hypogeum (which means underground). This was a complex underground structure with 12 curved tunnels on the sides of a central passageway. The gladiators and caged animals were housed there prior to the show. It also stored machinery and props for sceneries. On four of the tunnels there were 80 shafts with hoists to lift machinery and the animals up to the arena. The hypogeum had separate entrances: Â· Tunnels underneath the central axis of the Colosseum gave access to both ends of the central passageway of the hypogeum. They were used to bring in machinery and the animals. Â· Two monumental entrances gave direct access to the arena for the entry in great pomp for the gladiators. They were also used for animals which were too heavy to be hoisted from the understructure. Â· The attendants to the game gained access to the arena though open entrances on a tunnel which run underneath the bottom ring of the seating. This tunnel was also used by the senators to reach a platform reserved for them without having to mix with the crowd. (MORE)
Typically they are on 16" centers. That means if you pull from the edge of your first joist just mark every 16" and that is the edge of the joist. Most tape measures have red numbers or something else to make it easy to see where to mark. ....Or depending on age of the house they can also be 450mm c…entres(older) or more commanly nowadays 600mm if the loft space is above the ceiling? (MORE)
In a typical home, the surface flooring (such as wood, carpet or vinyl) rests on a subfloor, which rests on joists -- a series of closely spaced parallel beams that support the floor or ceiling loads. Joists are usually supported by a sill (a long horizontal timber that's the lowest part of the fram…ework and rests on the foundation) or a girder (a large beam that's the main support of the building). When replacing rotted floor joists it's important to be sure the girder and sill are still intact.. Typical costs: . If only a few joists are rotted primarily at the bottom, they can be repaired using a process known as "sistering" -- after the rot is cleaned away and the timber treated to prevent more problems, a new joist is laid beside the old one and fastened to it. Total costs will depend on the extent of the damage and the ease of access to the joists (through a basement or crawlspace), but in general sistering averages $100 -$300 or more per joist, and could run $1,000 -$3,000 or more to repair a tilted, wavy or bouncy floor under an average room. . If the floor joists are extensively damaged, it will be necessary to support the house with jacks while the joists are removed and replaced. In many cases, the sill may also be rotted and need replacing. Costs can run $10,000 -$30,000 or more for a typical home, depending on its size, the extent of the extent of the damage and the ease of access to install jacks and replace the timbers. If the damage is limited to just one section of floor joists, the project could run $5,000 -$10,000 . What should be included: . Joists carry the weight of walls, furniture, people, appliances and anything else placed on the flooring they support. Usually wooden floor joists are 2"x8", 2"x10" or 2"x12" timbers -- their size depends on their length, the amount of "load" they're designed to carry and the building codes in effect when the house was constructed. The Family Handyman explains how joists work. . If there is sufficient access through a basement or crawlspace, floor joists can be repaired or replaced without significant impact on the rest of the house. However, if there is limited access, all furniture and appliances must be removed from the affected area and the flooring and subfloor torn out. The Family Handyman explains how to "sister" damaged joists and HammerZone.com describes using a jack to raise a slightly sagging floor. Additional costs: . Floor joists can be damaged by boring insects such as termites or extended exposure to water. Before you replace damaged floor joists, you must exterminate the insects or improve the drainage and ventilation so the problem won't reoccur. Costs will vary widely depending on the extent and nature of the original problem. . Typically floor joists are repaired or replaced working from below, in a basement or crawl space. But if there's limited access to the joists, it may be necessary to work from above, removing the flooring and subflooring to repair or replace any damaged floor joists. Costs will depend on the extent of the damage and the type of replacement subflooring and flooring chosen. . (MORE)
Probably the only place you can install one and be relatively certain it will stay attached!
Floor joists in standard U.S. residential construction are supported on the outer walls by a foundation, typically cement block or concrete. Between outer walls, support may be necessary in the form of a support beam resting on posts which transfers load to a concrete pier.
What is the advantages of open-web floor trusses and engineered you-joists compared to dimensional lumber?
No cupping or checking or twising or warping. And they're lighter and often cheaper. And quicker to set because you don't have to build them in place.
By blocking I guess you mean a wall supporting the joists. Old school way is half the span plus 2, so if the span is 12 feet then half is 6 so add 2 to the 6 and you get 8, so the timber needs to be 8 inches deep.
Overloading would be one reason. Or the wood moisture content wastoo high when installed and it has bowed as it dried out. If thisrelates to old construction, there could be insect (termite) damageor rot that has weakened the member.
Typically you would not put hardwood flooring directly over the joists. You should first put down a subfloor.
There can be numerous causes for a floor to buckle over a floor joist. Flooring was not installed perpendicular to floor joist. Flooring was not allowed for proper expansion - expansion gap needed. Flooring was not properly fastened or not enough fasteners was applied. Excessive water or …moisture got onto the flooring causing it to buckle - check appliances, plumbing, windows and doors for water. Damaged or cracked floor joist. (MORE)
What size I-beam is required for a basement beam that needs to span 25 feet and will support 2x10 floor joists spanning 12 feet?
These calculations are not difficult, but you must know the load (including the floor weight) that will be carried. And the deflections that the appropriate building regulations allow.
The job is difficult, very uncomfortable, strenuous, and time consuming. All the nails attaching sub-floor and hardwood floor to the joist will have to be cut, the joist cut out two at a time, and then new, full-length joists installed in place. Depending on the year the house was built, this can be… almost impossible to do as they will have to be position diagonally and then forced perpendicular to the direction of the floor. Once the new joists are positioned and supported on either end, the task of re-attaching the floor to the joists is undertaken. This will have to be done precisely and skillfully from underneath without allowing the fasteners (screws) to puncture through the floor into the living space. Pre-applying construction adhesive to the top of the joists is effective, but adds another difficult step to the installation (all while in the crawl space). I operate in New England and would charge $60.00/hr for the un-pleasure of this job. Of course the size of the room dictates the length of the job, but you could count on $2500.00 in labor plus materials. (MORE)
Vinyl flooring or tile is a pretty cheap flooring option. However painted concrete flooring is also inexpensive and can be very attractive if done nicely.
Does a joist note giving size spacing and direction and shown on a floor plan pertain to the framing above or below?
A joist note on a first floor plan would refer to the Joist below that floor, a joist note on the third floor plan woud be for that floor.
Blocking. Cross Blocks, or X Blocks/Bracing. Depends on what region of the country you are in.
2 x 12 Joists spaced 16" on center are good for any normalbathroom. Make sure you figure out wherte your drains will be so itis not on top of a joist.
It depends what they are constructed of- if they're to be built of heavy material such as stone or brick, then yes they do. If they're just quite literally partitions made of plasterboard with an internal timber frame, then not necessarily. Although not required, it's good construction practice to s…tack studs over floor joist. This allows for heating,plumbing and other trade an opportunity to use the cavities to run floor to floor. (MORE)
Floor joists allow air to flow under wooden floors and help prevent damp/wood rot. They also assist with load spreading when heavy objects are placed on the floor.
Simple floors are considered to be easy and straightforward when it comes to installing them in your home. Common examples are pre-finished hardwood, laminate and cork wood floors.
What is the shallowest joist any type 16 or 12 oc that will span 14' in a residential house ll 40psf to replace badly damaged 6 wood joists?
You are pushing it with a 2 x 8. 2 x 10 would be better. Make sureyou double any joist supprting the roof.