CFI Estimating, Layout & Planning 2

Question 1

When estimating carpet for stairs, approximately how much carpet (in linear inches of width) is needed per step when measuring tread and riser combined?

Accepted Answer

18–21 inches

Answer

10–12 inches

Answer

14–17 inches

Answer

24–27 inches

Question 2

For a diagonal tile installation at 45 degrees, what additional waste percentage should be added to the estimate compared to a straight lay?

Accepted Answer

10–15%

Answer

2–3%

Answer

5–7%

Answer

20–25%

Question 3

In a 3-4-5 triangle method used for squaring layout lines, if one leg measures 3 ft and the other 4 ft, what must the hypotenuse measure for a true 90° angle?

Accepted Answer

5 ft

Answer

4.5 ft

Answer

6 ft

Answer

7 ft

Question 4

When planning a ceramic tile layout starting from the center of a room, what is the first step before snapping any layout lines?

Accepted Answer

Dry-lay tiles from wall to wall to check border widths

Answer

Apply adhesive to the center quadrant

Answer

Cut all border tiles

Answer

Install transition strips at doorways

Question 5

A hardwood floor is being estimated for a 14 ft × 18 ft room with an 8% waste factor. What total square footage should be ordered?

Accepted Answer

272 sq ft

Answer

252 sq ft

Answer

282 sq ft

Answer

272.16 sq ft

Question 6

What does a 'working line' represent in flooring layout?

Accepted Answer

A chalk or laser line used as a guide for placing the first row or tile course

Answer

The expansion gap at the perimeter wall

Answer

The grout joint alignment mark

Answer

The boundary between two flooring materials

Question 7

For an L-shaped room, what is the best approach when estimating flooring material?

Accepted Answer

Divide the room into two rectangles, calculate each area, then add them together with waste

Answer

Measure only the longest wall and multiply by the widest width

Answer

Measure the perimeter and divide by 4

Answer

Order material for a square room enclosing the entire L-shape