Page 94 - 2018 National Home Improvement

2018 National Home Improvement Estimator, All Rights Reserved Page 74

2" x 6", Std & Btr grade
2" x 6" ceiling joists, 16" centers, per MBF --@.000 MBF 674.68 -- 674.68
12" centers (1.15 BF per SF) B1@.026 SF 0.78 0.95 1.73
16" centers (.88 BF per SF) B1@.020 SF 0.60 0.73 1.32
20" centers (.72 BF per SF) B1@.016 SF 0.48 0.58 1.07
24" centers (.63 BF per SF) B1@.014 SF 0.42 0.51 0.93
2" x 8", Std & Btr grade
2" x 8" ceiling joists, 16" centers, per MBF --@.000 MBF 654.48 -- 654.48
12" centers (1.53 BF per SF) B1@.028 SF 1.00 1.02 2.02
16" centers (1.17 BF per SF) B1@.022 SF 0.77 0.80 1.57
20" centers (.96 BF per SF) B1@.018 SF 0.63 0.66 1.28
24" centers (.84 BF per SF) B1@.016 SF 0.55 0.58 1.13
2" x 10", Std & Btr grade
2" x 10" ceiling joists, 16" centers, per MBF --@.000 MBF 678.72 -- 678.72
12" centers (1.94 BF per SF) B1@.030 SF 1.31 1.09 2.41
16" centers (1.47 BF per SF) B1@.023 SF 1.00 0.84 1.84
20" centers (1.21 BF per SF) B1@.019 SF 0.82 0.69 1.51
24" centers (1.04 BF per SF) B1@.016 SF 0.71 0.58 1.29
2" x 12", Std & Btr grade
2" x 12" ceiling joists, 16" centers, per MBF --@.000 MBF 749.42 -- 749.42
12" centers (2.30 BF per SF) B1@.033 SF 1.73 1.20 2.93
16" centers (1.76 BF per SF) B1@.025 SF 1.32 0.91 2.23
20" centers (1.44 BF per SF) B1@.020 SF 1.08 0.73 1.81
24" centers (1.26 BF per SF) B1@.018 SF 0.95 0.66 1.61

Adding ceiling joists. Per linear foot of new joist set in joist hangers or “doubled” by spiking to an
existing joist. Work done from the floor below. Add the cost of removing ceiling cover to expose the
joists.
Jack two or three adjacent joists into position with a crossarm mounted on a hydraulic jack. Includes
the cost of removing the jack.
Per jacking point B1@.700 Ea -- 25.52 25.52
Add 2" x 6" ceiling joist
Per linear foot of joist B1@.042 LF 0.60 1.53 2.13
Add 2" x 8" ceiling joist
Per linear foot of joist B1@.046 LF 0.77 1.68 2.44
Add 2" x 10" ceiling joist
Per linear foot of joist B1@.050 LF 1.00 1.82 2.82
Add 2" x 12" ceiling joist
Per linear foot of joist B1@.052 LF 1.32 1.90 3.22