On a set of architectural drawings, the abbreviation GWB most commonly identifies which material?
Estimating Plan Reading
Question · Easy
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Short
A rectangular room measures 12 ft by 16 ft with an 8 ft ceiling and no openings. What is the total wall surface area to hang drywall (both faces of none—walls only, single layer)?
Question · Medium
How many 4 ft × 8 ft sheets of gypsum board are needed to cover 768 sq ft of wall area with a 10% waste allowance?
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On floor plans, which symbol or note typically identifies a fire-rated partition that must receive Type X gypsum board per the wall type schedule?
When reading a metal stud partition detail, what does the callout "3-5/8" 20 ga studs @ 16" o.c." specify?
Six feet: a hard-hat anthem
A ceiling measures 20 ft by 30 ft. How many 4 ft × 12 ft gypsum board sheets are required for a single-layer ceiling with 15% waste?
Question · Hard
Where on a commercial drawing set is the required gypsum board finish level (for example, Level 4 or Level 5) most reliably found?
Stud spacing is shown as 24 in on center for a 40 ft long partition. Approximately how many studs are required (including one at each end, ignoring openings)?
When estimating linear footage of metal track for a straight partition 48 ft long with top and bottom track, how many linear feet of track are required before waste?
A door opening 3 ft wide by 7 ft high is cut out of a 10 ft tall partition. How much wall drywall area is saved per side of the wall?
Which drawing scale is commonly used for enlarged partition details showing metal stud, track, and gypsum board layers?
If the specification requires double-layer 5/8 in Type X on each side of a corridor wall, how should the estimator count board for a 100 sq ft wall face?
A reflected ceiling plan (RCP) is primarily used by a drywall contractor to determine which of the following?
When converting a partition length measured on a 1/4" = 1'-0" plan, a wall drawn 3 inches long on paper represents what actual length?
What is the purpose of a head-of-wall detail on a fire-rated partition drawing?
What is the most common nominal thickness of gypsum board used for single-layer residential walls?
Materials Installation
Which gypsum board type is most commonly specified for one-hour fire-rated wall assemblies?
What is the primary difference between Type X and Type C gypsum board?
Which ASTM standard covers the installation of steel framing members that receive screw-attached gypsum board?
Which ASTM standard covers application and finishing of gypsum board?
What screw type is used to fasten gypsum board to light-gauge (typically under 33 mil) steel studs?
Minimum screw penetration into light-gauge steel framing for gypsum board attachment is generally which of the following?
How far should drywall fasteners be placed from the edge or end of the gypsum board?
What is the correct depth for driving a drywall screw?
For single-layer gypsum board on walls framed at 16 in o.c. without adhesive, maximum screw spacing in the field is commonly which value under ASTM C840 practice?
What is the standard preferred orientation for hanging gypsum board on ceilings?
Why should gypsum board butt (end) joints be staggered?
What is the correct general method to cut gypsum board with a utility knife?
Nonstructural interior metal studs are most commonly available in which web depths?
What is the function of the floor and ceiling track (runner) in a metal stud partition?
Why are studs typically cut slightly short of the full floor-to-structure dimension when a deflection (slip) track is used at the head of wall?
Typical fastener spacing for securing metal floor track to a concrete slab is most nearly which practice (unless the specification states otherwise)?
What is the primary purpose of punch-outs (knockouts) in metal stud webs?
When framing a door opening in a metal stud wall, what members typically form the rough opening sides?
What gauge range is typical for standard nonstructural interior metal studs used in ordinary partitions (not structural exterior walls)?
Why is 5/8 inch gypsum board often preferred over 1/2 inch on ceilings framed at 24 in o.c.?
What product is commonly known as "greenboard"?
For tile in a tub or shower wet wall, which substrate is generally preferred under current residential practice?
What is resilient channel primarily used for in drywall assemblies?
Which statement about installing gypsum board over resilient channel is correct?
What is the typical flange (leg) orientation relationship between studs and track?
Control joints in large gypsum board surfaces are installed primarily to:
What accessory is used to protect and straighten exterior drywall corners?
What is J-bead (or J-trim) primarily used for?
When hanging multi-layer gypsum board for fire-rated walls, joints in successive layers should be:
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