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Estimate of Materials and Cost of Construction
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Date:1/18/2026 Summary Amount
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Project: L'ENFANT - BURNS 2412 L'ENFANT SQUARE SE, WASHINGTON, D.C., 20020 Subtotal $ 118,167
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Profit/Overhead
$ 29,542
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 Total $ 147,709
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ITEM #REF. SHEETDETAILCSI SECTDESCRIPTIONQTY.WASTAGEQTY WITH
WASTAGE		UNIT UNIT LABOR COST UNIT MATERIAL COST ITEM COSTTRADE COST
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DIV-01GENERAL $ -
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1Permits Documentation And Fees 1 0% 1 LS $ -
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2Hazardous Waste Or Disposal Work 1 0% 1 LS $ -
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3Owner Purchased, Contractor Installed Items 1 0% 1 LS $ -
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4Contractors Use Of New And Existing Facilities 1 0% 1 LS $ -
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5Correction Of Unsatisfactory Conditions 1 0% 1 LS $ -
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6Restoration Of Unit Damaged During Installation 1 0% 1 LS $ -
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7Replacement Of Units Which Cannot Be Restored 1 0% 1 LS $ -
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8Maintaining Existing Construction In Weather High Conditions 1 0% 1 LS $ -
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9Signage 1 0% 1 LS $ -
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10Supervisory Personnel 1 0% 1 LS $ -
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11Temporary Services 1 0% 1 LS $ -
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12Water 1 0% 1 LS $ -
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13Lighting And Power 1 0% 1 LS $ -
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14Toilet Facilities 1 0% 1 LS $ -
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15Material Storage 1 0% 1 LS $ -
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16Contractor's Safety Program 1 0% 1 LS $ -
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DIV. 23MECHANICAL ( HVAC ) $ 118,167
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DUCT WORK
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1710" x 8" Rectangular Duct 2010% 22 LF $ 4.80 $ 7.50 $ 267 12.3
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1810" x 4" Rectangular Duct 13010% 143 LF $ 4.29 $ 6.71 $ 1,573 11
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1912" x 8" Rectangular Duct 510% 5 LF $ 5.23 $ 8.17 $ 72 13.4
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2014" x 8" Rectangular Duct 2010% 22 LF $ 5.85 $ 9.15 $ 324 15
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2114" x 9" Rectangular Duct 410% 4 LF $ 5.93 $ 9.27 $ 62 15.2
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226" x 4" Rectangular Duct 1510% 17 LF $ 3.20 $ 5.00 $ 137 8.2
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236" x 8" Rectangular Duct 1310% 14 LF $ 3.51 $ 5.49 $ 128 9
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248" x 4" Rectangular Duct 810% 9 LF $ 2.85 $ 4.45 $ 65 7.3
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258" x 6" Rectangular Duct 3110% 34 LF $ 3.16 $ 4.94 $ 272 8.1
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268" x 7" Rectangular Duct 1010% 11 LF $ 3.51 $ 5.49 $ 95 9
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2714" x 14" Square Duct 910% 10 LF $ 6.36 $ 9.94 $ 161 16.3
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286" x 6" Square Duct 4010% 44 LF $ 2.85 $ 4.45 $ 321 7.3
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298" x 8" Square Duct 1410% 16 LF $ 3.86 $ 6.04 $ 156 9.9
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304" Dia. Round Duct 15910% 175 LF $ 2.38 $ 3.72 $ 1,067 6.1
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316" Dia. Round Duct 11110% 122 LF $ 3.24 $ 5.06 $ 1,013 8.3
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327" Dia. Round Duct 1010% 11 LF $ 3.43 $ 5.37 $ 99 8.8
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REFRIGRANT PIPING
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332" Piping PVC9810% 108 LF $ 9.13 $ 14.27 $ 2,519 23.4
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344" Piping PVC210% 2 LF $ 11.70 $ 18.30 $ 64 30
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AIR DEVICES
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3510" x 4" Ceiling Register, 100 CFM 30% 3 EA $ 132.60 $ 207.40 $ 1,020 340
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3610" x 4" Ceiling Register, 120 CFM 10% 1 EA $ 140.40 $ 219.60 $ 360 360
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3710" x 4" Ceiling Register, 90 CFM 20% 2 EA $ 132.60 $ 207.40 $ 680 340
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386" x 4" Ceiling Register, 20 CFM 20% 2 EA $ 117.00 $ 183.00 $ 600 300
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3910" x 4" Floor Register, 110 CFM 30% 3 EA $ 132.60 $ 207.40 $ 1,020 340
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4010" x 4" Floor Register, 40 CFM 10% 1 EA $ 120.90 $ 189.10 $ 310 310
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4110" x 4" Transfer Register, 130 CFM 10% 1 EA $ 128.70 $ 201.30 $ 330 330
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4210" x 4" Transfer Register, 85 CFM 20% 2 EA $ 117.00 $ 183.00 $ 600 300
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4312" x 12" Return Air Grille 20% 2 EA $ 159.90 $ 250.10 $ 820 410
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446" x 6" Return Air Grille, 100 CFM 20% 2 EA $ 132.60 $ 207.40 $ 680 340
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456" x 6" Return Air Grille, 90 CFM 20% 2 EA $ 132.60 $ 207.40 $ 680 340
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468" x 4" BR, 20 CFM 20% 2 EA $ 117.00 $ 183.00 $ 600 300
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DAMPERS
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47Volume Damper180% 18 EA $ 42.90 $ 67.10 $ 1,980 110
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48Fire Damper40% 4 EA $ 54.60 $ 85.40 $ 560 140
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49Motorized Damper 20% 2 EA $ 54.60 $ 85.40 $ 280 140
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50Gravity Back Draftdamper 50% 5 EA $ 54.60 $ 85.40 $ 700 140
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51Fire Radiation Damper130% 13 EA $ 54.60 $ 85.40 $ 1,820 140
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52THERMOSTAT10% 1 EA $ 35.10 $ 54.90 $ 90 90
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WALL CAP
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53Wall Cap W/ Backdraft Damper & Bird Screen 40% 4 EA $ 81.90 $ 128.10 $ 840 210
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54Dryer Exhaust Wall Cap 10% 1 EA $ 66.30 $ 103.70 $ 170 170
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FANS
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55Toilet Exhaust Fan, MFG: Panasonic, Model: FV-05-11VSK1, 30/60 CFM20% 2 EA $ 156.00 $ 244.00 $ 800 400
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56Toilet Exhaust Fan, MFG: Panasonic, Model: FV-05-VK3, 50 CFM30% 3 EA $ 156.00 $ 244.00 $ 1,200 400
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ELECTRIC HEATER
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57CH, MFG: QMARK, Model: REZNOR ECEB, 100 CFM, 4.0 kW10% 1 EA $ 245.70 $ 384.30 $ 630 630
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SPLIT SYSTEM GAS FIRED UNITS
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INDOOR UNITS
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58AC, MFG: Trane, Condensing Furnace: XB-90, 400 CFM, Heating Capacity: 40 MBH, MERV-11 Filter, ECM Motor, 135 lbs10% 1 EA $ 16,770.00 $ 26,230.00 $ 43,000 43000
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59AC, MFG: Trane, Condensing Furnace: XB-90, 600 CFM, Heating Capacity: 40 MBH, MERV-11 Filter, ECM Motor, 135 lbs10% 1 EA $ 16,770.00 $ 26,230.00 $ 43,000 43000
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OUTDOOR UNIT
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60Outdoor Unit, MFG: Trane, Model: 4TWR5018, Capacity: 18000 BTUH20% 2 EA $ 1,365.00 $ 2,135.00 $ 7,000 3500
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SUB TOTAL
 $ 118,167 $ 118,167
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INSURANCE
 $ 0.05 $ 5,908 $ 5,908