Page 86 - 2018 National Home Improvement

2018 National Home Improvement Estimator, All Rights Reserved Page 68

Fireblocks. Installed in wood frame walls, per LF of wall to be blocked. Figures in parentheses indicate
board feet of fire blocking per linear foot of wall, including 10% cutting waste. See also Bridging and
Backing and Nailers.
2" x 3" blocking, Std & Btr
2" x 3" fireblocks, 16" centers, per MBF --@.000 MBF 729.22 -- 729.22
12" OC members (.48 BF per LF) B1@.026 LF 0.35 0.95 1.30
16" OC members (.50 BF per LF) B1@.025 LF 0.36 0.91 1.27
20" OC members (.51 BF per LF) B1@.022 LF 0.37 0.80 1.18
24" OC members (.52 BF per LF) B1@.020 LF 0.38 0.73 1.11
Add for removing and replacing, per block B1@.026 LF -- 0.95 0.95
2" x 4" blocking, Std & Btr
2" x 4" fireblocks, 16" centers, per MBF --@.000 MBF 658.52 -- 658.52
12" OC members (.64 BF per LF) B1@.030 LF 0.42 1.09 1.52
16" OC members (.67 BF per LF) B1@.025 LF 0.44 0.91 1.36
20" OC members (.68 BF per LF) B1@.022 LF 0.44 0.80 1.25
24" OC members (.69 BF per LF) B1@.020 LF 0.45 0.73 1.18
Add to remove and replace, per block B1@.030 LF -- 1.09 1.09
2" x 6" blocking, Std & Btr
2" x 6" fireblocks, 24" centers, per MBF --@.000 MBF 674.68 -- 674.68
12" OC members (.96 BF per LF) B1@.031 LF 0.65 1.13 1.78
16" OC members (1.00 BF per LF) B1@.026 LF 0.68 0.95 1.62
20" OC members (1.02 BF per LF) B1@.022 LF 0.69 0.80 1.49
24" OC members (1.03 BF per LF) B1@.020 LF 0.70 0.73 1.43
Add to remove and replace, per block B1@.034 LF -- 1.24 1.24

Ceiling beams -- room addition. Std & Btr. Installed over wall openings and around floor, ceiling and
roof openings or where a flush beam is called out in the plans, including 10% waste. Don’t use these
cost estimates for door or window headers in framed walls. See the door or window opening framing
assemblies costs that follow.
2" x 6" beams, per MBF B1@24.5 MBF 674.68 893.00 1,567.68
2" x 8" beams, per MBF B1@25.2 MBF 654.48 918.50 1,572.98
2" x 10" beams, per MBF B1@25.1 MBF 678.72 914.90 1,593.62
2" x 12" beams, per MBF B1@25.9 MBF 749.42 944.10 1,693.52
4" x 6" beams, per MBF B1@25.9 MBF 983.74 944.10 1,927.84
4" x 8", 10", 12", 14" beams, per MBF B1@25.5 MBF 983.74 929.50 1,913.24
6" x 6", 8", 10", 12", 14" beams, per MBF B1@19.1 MBF 1,616.00 696.20 2,312.20
2" x 6" (1.10 BF per LF) B1@.028 LF 0.75 1.02 1.77
2" x 8" (1.47 BF per LF) B1@.037 LF 0.96 1.35 2.31
2" x 10" (1.83 BF per LF) B1@.046 LF 1.24 1.68 2.92
2" x 12" (2.20 BF per LF) B1@.057 LF 1.65 2.08 3.72
4" x 8" (2.93 BF per LF) B1@.073 LF 2.88 2.66 5.54
4" x 10" (3.67 BF per LF) B1@.094 LF 3.62 3.43 7.04
4" x 12" (4.40 BF per LF) B1@.112 LF 4.33 4.08 8.41
4" x 14" (5.13 BF per LF) B1@.115 LF 5.05 4.19 9.24
6" x 6" (3.30 BF per LF) B1@.060 LF 5.34 2.19 7.53
6" x 8" (4.40 BF per LF) B1@.080 LF 7.12 2.92 10.04
6" x 10" (5.50 BF per LF) B1@.105 LF 8.91 3.83 12.74
6" x 12" (6.60 BF per LF) B1@.115 LF 10.71 4.19 14.90
6" x 14" (7.70 BF per LF) B1@.120 LF 12.42 4.37 16.80