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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.
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Does floor joist height increase with length of joist?
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 have a 22' span in a garage with living area above it, you would use 2 x 12 with 12" on center spacing.
How much does porcelain floor tile weigh?
Depends on the size of the squares, thickness, material composition. 12" x 12" Porcelain tiles weigh about 4.5 lbs.
How many tiles each 12 by 12 are needed to cover a floor of 210 ft?
210 of them.
What is 12 inch square hole in basement floor for and it has a 6 inch capped pipe in it?
12x12 square hole in basement floor what is it for
Can 2 different size rectangles have the same area?
Yes. Two different size rectangles can have the same area. Take a 6x8 rectangle and a 4x12 rectangle. Both have an area of 48 square units. But wait ! Doesn't it all depend on what you mean by "size" ?? I suspect that a hardwood floor dealer or a carpet salesman would agree that a 4-by-12 room and a 6-by-8 room are both the same 'size'.
What size of floor joist for framing will be needed to support a second story with a 12 foot span?
2X8 set 16 inch on center.
What size of floor joist should you use?
Different situations call for different joists. Generally floor joists are 2 x 12.
What is a 2 x 12 typically used for in residential construction?
Headers over doors and windows, stairs, floor joist depending on the style and size of the house.
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.
Does floor joist height increase with length of joist?
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 have a 22' span in a garage with living area above it, you would use 2 x 12 with 12" on center spacing.
What is the actual rise of a roof rafter?
Depends on what pitch the roof is. Measure the ceiling joist to a point or to center and then plumb to the rafter and do the math. 3, 4, 5, x 12 pitch rises that much per foot of distance on the ceiling joist. 3x12 pitch, 12 feet to center of joist, 3x12=36. 36 inch rise from the edge of the roof to the center.
What can you span with a 2x4?
That depends upon its use, snow load if rafter - location As a ceiling joist/floor joist only around 6' depending upon species of wood & grade Also depends upon spacing, 12" 16" or 24" OC
What is a common joist size?
There are different sizes when framing lumber. The most common size of framing lumber is 2 by 4.
What is the actual hole size for 1 inch conduit?
Actual hole size for 1 inch conduit is 1.362"
What is the actual size of 12 inches?
The size of 12inches is the size of a ruler. Or you can think of it as the size of a very large foot.
How many tiles to cover 440 square feet floor?
To answer that question, you need to know the tile size. If it is 12" x 12" then 440 but also you will need 10% waste, putting your actual needed to be 485 square ft.
How to build a platform over a sharply sloped floor?
How much slope and how long of a run? For short distance, up to 12 feet, and 12 inches of drop, you cut a 2x12 at the right slope and use them for the floor joist. For longer runs or greater slope, Use 2x6 level and use 2x4 legs under them.
