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Estimating Drywall Nails

WALLWORKSGUIDE

Planning, Applying, Installing, Finishing

and Repairing Your Walls and Ceilings.

PAGE

1 of 8

PLAN

Sketch

A little planning before the job begins can save you a lot

of time and materials later on.

• Sketch out the area you want to cover with DensArmor

Plus

panels. Use the sketch as a guide to determine

how much drywall you’ll need.

• Remember to plan for the board to be installed across

(perpendicular to) joists and/or studs.

• Try to avoid end joints wherever possible. To do that,

you may want to buy 128 (3658 mm) instead of 88

(2438 mm) board, depending on your room size.

• If end joints can’t be avoided, stagger them so they all

don’t fall at one end of the room.

Your DensArmor Plus panels should be stored flat, indoors,

and away from moisture and temperature extremes,

until you’re ready to use it. As soon as possible after

joint treatment is thoroughly dry, all surfaces should be

sealed or primed.

Estimate

Once you’ve determined how much DensArmor Plus

panels you’ll need, you can use the following charts to

estimate for nails, joint compound and tape.

Note: If you’re applying drywall to masonry walls,

see ‘‘Masonry’’ section for additional materials.

*How Much Board Do You Need?

First, figure out the wall and ceiling areas:

Ceiling area = Width of the room x Length of the room

Wall area = (Width + Length) x 2 x Height of the room

For example, a 128 (3658 mm) x 168 (4877 mm) x 88 (2438 mm)

room has a wall/ceiling area of 640 sq. ft. (59.5 m

)

Ceiling area: 12 x 16 = 192

Wall area: (12 + 16) x 2 x 8 = 448; 192 + 448 = 640.

Look at the Room Measurement Table for a quick

reference. Measure door and windows area and subtract

their square footage from the total square footage to

obtain net room area.

Then refer to the Panel Coverage Table to locate the

number of wallboard panels required for the room. Be

sure to allow 10% to 15% overage for cutting and piecing.

Panel Coverage Table (in sq. ft. of wall area)

1 2 3 4 5 6

Panel Panels Panels Panels Panels Panels

4* x 8* Panel 32 64 96 128 160 192

4* x 9* Panel 36 72 108 144 180 216

4* x 10* Panel 40 80 120 160 200 240

4* x 12* Panel 48 96 144 192 240 288

4* x 14* Panel 56 112 168 224 280 336

4* x 16* Panel 64 128 192 256 320 384

48 58 68 78 88 98 108 118 128 138 148 158 168

88 224 248 272 296 320 334 368 392 416 440 464 488 512

98 244 269 294 319 344 369 394 419 444 469 494 519 544

108 264 290 316 342 368 394 420 446 472 498 524 550 576

118 284 311 338 365 392 419 446 473 500 527 554 581 608

128 304 332 360 388 416 444 472 500 528 556 584 612 640

138 324 353 382 411 440 469 498 527 556 585 614 643 672

148 344 374 404 434 464 494 524 554 584 614 644 674 704

158 364 395 426 457 488 519 550 581 612 643 674 705 736

168 384 416 448 480 512 544 576 608 640 672 704 736 768

Room Measurement Table*

(in. sq. ft. of wall and ceiling area)

Joist/Stud DensArmor Approx. lbs. of

width Plus

Drywall nails per 1000 sq. ft.

(on center) Thickness Nails of drywall

169

⁄29 1

⁄89 coated 5

⁄4 lbs.

249

⁄89 1

⁄89 coated 5

⁄4 lbs.

Panel Sq. Ft. Joint Compound Tape

100-200 sq. ft. 12 lb. Pail two 608 rolls

500 sq. ft. 48 lb. Ctn. one 2508 roll

800 sq. ft. 61.7 lb. Pail two 2508 rolls

Estimating Joint Compound and Tape

48( wide DensArmor Plus; 8* high framing

48(

Summary of content (8 pages)

PAGE 1
PLAN Sketch A little planning before the job begins can save you a lot of time and materials later on. • Sketch out the area you want to cover with DensArmor Plus® panels. Use the sketch as a guide to d etermine how much drywall you’ll need. • Remember to plan for the board to be installed across (perpendicular to) joists and/or studs. • Try to avoid end joints wherever possible. To do that, you may want to buy 128 (3658 mm) instead of 88 (2438 mm) board, depending on your room size.
PAGE 2
47 46 45 44 4 7 43 5 8 42 6 9 41 7 18 32 17 33 16 34 15 35 14 36 13 37 12 38 11 39 10 40 8 WALLWORKSGUIDE 9 6 10 5 11 4 14 12 6 5 4 3 15 13 2 3 2 1 3 2 Materials • DensArmor Plus® Interior Panels Use our online calculator to estimate the number of pieces you’ll need for your project. Go to www.densarmorplus.com, choose a product and click the Installation tab.
PAGE 3
⁄29 (12.7 mm) DensArmor Plus® may be applied to 249 (610 mm) o.c. joists as long as it is installed across or perpendicular to ceiling joists as shown. All nails should be “dimpled”. That is, drive the nails firm enough to indent the board’s facer without tearing it. It’s best to install board on the ceiling before installing board on the wall. It also helps to have a pair of T-braces to help hold the board in place while it’s being nailed.
PAGE 4
To further reduce the potential for mold growth and maintain a completely non paper-faced wall surface, fiberglass joint tape should be used to finish the joints of DensArmor Plus® panels. A setting-type compound is required for at least the first coat over fiberglass mesh tape. Additional coats prescribed by the desired level of finish should be a drying-type (powder or ready-mixed) joint compound. Inside corners may be finished with vinyl corner beads to maintain a non paper-faced wall.
PAGE 5
Tools The materials and tools you’ll need for most repairs are: 5. To maximize the mold-resistant benefit of DensArmor Plus® panels, a 100% acrylic primer with mildecide should be used. 2. Fiberglass mesh tape or drywall tape 6. High-quality flat or satin paint should be applied over the primer. Semi-gloss or gloss paints are not recommended. 4. Fasteners (nails or screws) 7. Level 5 finish should be utilized for semi-gloss or gloss paints, per GA-214. 6.
PAGE 6
Nail Pops 1. Drive new nail about 1-29 (25-51 mm) above and below the one that has popped. 2. P ush panel close to the stud while you “dimple” the two nails. (See Installation section for explanation of “dimpling.”) 3. R emove loose material from dimpled areas, sand lightly. 4. F ill dimpled area with joint compound — let dry overnight. 5. I f shrinkage occurs in drying, re-apply joint compound. When patch is dry, sand lightly. 6. P rime and texture or paint to match existing wall.
PAGE 7
Addition A 5⁄89 (15.9 mm) DensArmor Plus® Fireguard®, available in 88 (2438 mm) to 128 (3658 mm) lengths, is the preferred substrate for ceilings and walls for improved fire resistance and sound isolation compared to 1⁄29 (12.7 mm) gypsum board. 1 B ⁄29 (12.7 mm) DensArmor Plus, available in 88 (2438 mm) to 128 (3658 mm) lengths, is the typical wall and ceiling drywall product for new homes and additions.
PAGE 8
WALLWORKSGUIDE DensArmor Plus® Interior Panels DensArmor Plus Interior Panels have fiberglass mats instead of paper to provide superior mold resistance. The c ombination of non paper-faced surfaces and the addition of a moisture-resistant core provides superior m oisture and mold resistance when compared to traditional paper-faced drywall.** Please refer to installation recommendations and written warranty. Details available from Georgia-Pacific Gypsum.