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How do you use a snap line and framing square to find out if a room is square?
You could run the chalk snapline from corner to corner crossing in the middle and then taking the framing square to the center of the room. Lay the square with the point to the center of the intersection. If the room is square, the legs of the framing square should run down the chalk line evenly. The best best way to really know if the room is square is calculate the hypotenuse of the triangle. This is best done with a tape measure, however if we only have a framing square and a snapline this is what you can do: 1st we start at an inside corner. Using the ruler on the framing square measure along the wall to a distance of three feet. Make a mark. 2nd starting at the same corner measure out along the other wall to a distance of four feet. Make a mark. 3rd snap a line from each of your marks. At this point you should see a triangle that includes the corner that you measured from, the two walls that you measured along, and the snapped line that you just made. If that snapped line measures five feet, VIOLA! your room is square.
How do you use a framing square?
A framing square is used to cut stairs, rafters, or anything else requiring repeated cuts that are square or of a given angle. How do you use it? Depends on what you are doing. Cutting stairs? You figure out the height and distance out you want the stairs to go and dedide on how high you want the steps. Steps can be anything , but usually between 5 to 8 inches high and 8 to `12 inches wide. Most common is 8x10 8 high and 10 wide. Take the square on the edge of a 2x12. put the 8 inch mark on the left hand side and the 10 inch on the right side. Using the top edge of the square. Mark this L on the board and then move down the board putting the 8 inch where the 10 inch was. Mark the top edge again, repeat until you have made a long enough stair. The measurements can be anything so that you end up with even steps.. It can be 6 and 3/8 inches by 11 and a half inches if that makes for even steps. Laying it out it should look like a series of L's running the length of the 2x12. Cut out the 3 cornered pieces and you have a stair riser.
What is a linea meter?
lineal (or linear) metre, this refers to length or distance. this avoids confusion of square metres or cubic metres. there is no need to use this term in normal circumstances. timber can be sold by the cubic metre for fire wood, square metre for flooring or linear metre for framing
How do interior designers use math?
the way they use math is buy calculating square yardage for carpeting; square footage for painting and wallpaper. Dimensions of rooms to fit the furniture; Lay out floor plans and traffic patterns; calculate size for window coverings .
How do you determine the square footage of stairs?
Assuming you want the square footage for 12ft wide broadloom carpet; a quick measure of the width of the stair tread (width), typical lineal measurement of both riser and down across stair tread and over and around stair nosing(LF), and total amount of stairs (each). An 8ft ceiling typically has 12 stair treads with 13 risers. Stair tread and riser measure typically 1'6" LF and 1'9" LF allows for tucking and squaring the piece. A typical width is 3'2" wide. Thus you can get 3 widths out of a 12ft wide carpet. Needing 12 stairs x 3'2" wide x 1'9" LF in total. A 12 ft wide carpet running (4 x 1'9" LF) 7'0" . You need 12'0" x 7'0" or 9.33 Sq.yards/84 Sq.feet. If you have "pie shaped" stairs you have to measure the furthest points of both riser and stair tread while measuring the stair tread on a 90 degree angle to the riser so the straightness of the pile direction is consistant from stair to stair regardless of the shape of the stair. Stairs that are opened on the sides( no stringer) must also be measured along furthest points and allow extra tuck space for upholstery of the corners. If the stairs are wider then 4 feet, use a piece of graph paper to draw out the 12 ft width of carpet and "fill-in" the stairs allowing 1"-3" in between cut pieces. Always allow an extra 3" per total cut size to allow for the factory cut to be off-square!
