intd 54 estimating wallcoverings. wall preparation walls must be clean and dry—free from grease,...
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wall preparation
•walls must be clean and dry—free from grease, dirt, body oils & old wallpaper•determine who will do prep•nail holes need to be filled•walls need to be smooth•unsealed walls need to be primed and sealed•determine appropriate sizing to use•paint trim before hanging wallcovering
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estimating materials
how to measure:•use steel measuring tape—25 ft. long x ¾ in. wide—always measure in inches•measure length then width of each wall•put measurements on rough sketch/ exploded floor plan•measure windows, doors & other openings—add measurements to drawing•follow-up measure by wallpaper hanger
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estimating materials
estimating wallpaper:•consulting manufacturers charts—
• fastest & easiest; works well for average, box-shaped rooms
•strip method—• requires counting of actual strips used• chopped-up wall space, cathedral ceilings,
commercial installations•square footage method—
• works for almost any wall surface
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estimating materials
estimating wallpaper: european, american-made,
oriental, commercial
double roll—five
full strips (with 8 ft. ceiling)
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estimating materials
American-made wallcoverings (27-inch roll)
•standard formula—no pattern repeat•measure perimeter of room•multiply by ceiling height•divide by 30•deduct 2 single rolls for every 4 ordinary openings
example: room is 12 ft x 14 ft w/8 ft ceilings room has 2 windows & 2 doors
12’+14’+12’+14’ = 52’x 8’ ceiling= 416’/30 = 14 rollsdeduct 2 rolls for openings = 12 rolls
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estimating materials
European wallcoverings (20-22 inches wide)
•estimate square footage, divide by 22•more rollage is needed than when using American-made
Oriental wallcoverings (36-inches wide)
•estimate square footage, divide by 36
commercial wallcoverings (54-inches wide)
•can be done by strip method or square footage method•sq ft method must be divided by 13.5 to convert to linear yards
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estimating materials
pattern repeats•lengthwise/crosswise measurement of one design motif to where that same pattern is again repeated•straight—straight across match•half-drop—same height pattern motif halfway in between two other repeats•random—does not present matching problem—advisable to reverse strips for grasscloth
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estimating materials: rollage chartplain or solid coverings
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time estimating•realistic time-estimate only given after wallcovering is ordered•call paper hanger to set installation date—ask for estimate of time
cost estimating•materials—vary GREATLY in cost•hanging labor—charged per roll
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choosing a paper hanger
•have hangers in mind before you need them•range from inexpensive part-timers to seasoned professionals•get referrals from other designers•set up appointments and interviews—see their work & call past clients•always get a signed work order to avoid misunderstandings
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example of final wallcovering costs
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example of final wallcovering costs