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Is oak used for decking joists?
No typically they use pine or spruce
How much space between supports on an outdoor deck?
Depends on thickness and type of decking.If decking is dressed 1"(25mm)pine then joists need to be 12-16"centres(400-450mm) apart max.If the decking is thicker then joists can be spaced at 24"centres(600mm)apart max.You should also consult local building code in case they stipulate otherwise.
How many 2x4's will you need to build a 10ft by 10ft deck?
It's unlikely you would use many 2X4s on a deck. The joists (under the decking) are usually 2X6 or larger. The larger the joist, the fewer you need, because you can space them further apart. The decking is made of 1X6s nailed or screwed to the top of the joists, and running perpendicular to the joists or at an angle to the joists. The amount of decking you need depends on whether you intend to make a pattern (herringbone) or a typical deck. The railing might include 2X4s as the top rail, but the support posts are usually 4X4s, and in between those, you usually use small stock to add the decorative posts/slats.
Name the basic components used in floor framing?
In a conventionally framed wood structure, you will find box/rim joists, floor joists, headers, braces, and some form of decking. There are many parts to a floor and more ways than one to build one. In timber framed building, you will find posts, braces, girts, joists, connectors, and other heavy timbers.
How do I build a wooden ramp for a metal 10X8 foot shed with a 9 inch drop to ground and an opening of about 4 feet?
This will be hard to answer because you did not specify what will be stored and the dimensions of the building entrance. Building a ramp requires a frame to be built so that some kind of decking material can be placed on top of it to provide a flat surface for the storage object to ride on. The easiest way that I can think of is to get some joist hangers that allow joists to be placed on a downward angle. Install the joist hangers to the building's framing member located below the entrance. Install joists in the joist hangers and angle them down to the ground. Cut out the bottom of the joists so they allow the joist to sit on the ground nicely. Basically, you will make the cut so that the joist comes to a point where it meets the ground. Now place decking material on top of the joists (plywood, 5/4 decking boards) making sure the joists are all parallel and square. Now drive fasteners along the decking material to attach it securely to the joists. Check your local building codes to see if permits, surveys, or inspections are needed. Code enforcement officers are your friends when you need to build things to accommodate heavy loads or special situations. (Just make sure you ask them questions before you start building stuff)
What size of floor joist should you use?
Different situations call for different joists. Generally floor joists are 2 x 12.
What is the span for interior floor decking?
I don't understand your question completely, but I think what you are asking is how far apart support can be for a subfloor or floor decking. It will vary with the type of construction, but for residential housing it's almost always 16 inches between the floor joists. That would be measured from the center of the joist to the center of the next joist.
How much weight can hardwood flooring support between joists?
Typically you would not put hardwood flooring directly over the joists. You should first put down a subfloor.
Can roof joists run in a different direction to floor joists?
Yes. Rafters and flloor joists do not have to run the same direction.
Why should the tops of floor joists need to be level?
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.
Deck joists that cantilever out past the deck posts should never overhang the girder they rest on by more than?
Deck joists can lift out of their hangers at the rim/band if too many people are at the cantilievered section of a deck. Therefore deck joists that cantilever out past the deck posts, should never overhang the girder they rests on by more than how far?
What is the cost to replace a rim joist?
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 framework 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 -$3,000or 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.
