CFI Estimating, Layout & Planning 1 — Questions and Answers
Question 1: When estimating carpet for a room with multiple pattern seams and cuts, what waste factor is most commonly added above net square footage?
- 5–7%
- 10–15% (Correct answer)
- 20–25%
- 30–35%
Correct answer: 10–15%
A 10–15% waste factor is standard for carpet with pattern matching and multiple seam cuts to account for repeat alignment and edge trimming.
Question 2: For a solid hardwood floor installation in a straightforward rectangular room with no pattern, what waste factor is typically recommended?
- 1–2%
- 5–10% (Correct answer)
- 15–20%
- 25–30%
Correct answer: 5–10%
5–10% waste is standard for solid hardwood to account for end cuts, grading culls, and layout offcuts.
Question 3: When planning a tile layout, what is the generally recommended minimum tile width at walls to avoid an unbalanced appearance?
- One-quarter of a tile width
- One-half of a tile width (Correct answer)
- One tile width
- Two tile widths
Correct answer: One-half of a tile width
Layout should be planned so that border tiles are at least half a tile wide, preventing narrow slivers that look unbalanced and are structurally weak.
Question 4: A room measures 12 ft × 15 ft. Each box of LVP covers 18 sq ft. Adding 10% for waste, how many boxes are needed?
- 9 boxes
- 10 boxes
- 11 boxes (Correct answer)
- 12 boxes
Correct answer: 11 boxes
12 × 15 = 180 sq ft; 180 × 1.10 = 198 sq ft; 198 ÷ 18 = 11 boxes exactly.
Question 5: What is the primary reason that carpet seams should be oriented perpendicular to windows and primary light sources?
- To reduce moisture penetration at seams
- To make seams less visible by aligning pile direction with light (Correct answer)
- To maximize seam strength
- To comply with ASTM seam-placement standards
Correct answer: To make seams less visible by aligning pile direction with light
Running seams perpendicular to light causes pile to lay toward the viewer, making the seam shadow disappear rather than highlight it.
Question 6: What is a 'balance point' in flooring layout planning?
- The center of the room from which layout lines radiate to equalize border tiles on opposite walls (Correct answer)
- The spot where the heaviest furniture will be placed
- The point where two flooring species meet
- The midpoint of the longest wall
Correct answer: The center of the room from which layout lines radiate to equalize border tiles on opposite walls
The balance point is found by centering the layout so that cut tiles on opposite walls are equal in width, giving the floor a symmetrical, professional appearance.
Question 7: When racking hardwood flooring before installation, what is the main objective?
- Ensuring all boards are the same length
- Distributing end joints randomly so no two adjacent rows have joints within 6 inches of each other (Correct answer)
- Aligning grain direction in one direction
- Stacking boards by width to maintain grading consistency
Correct answer: Distributing end joints randomly so no two adjacent rows have joints within 6 inches of each other
Racking means pre-laying boards to confirm end joints are staggered at least 6 inches apart between adjacent rows, producing a structurally sound and aesthetically pleasing floor.
CFI Estimating, Layout & Planning 1
When estimating carpet for a room with multiple pattern seams and cuts, what waste factor is most commonly added above net square footage?