("Jay Honeck" wrote)
I just looked up an invoice for a building we did last summer. It was
about $0.25 per square foot for 3" on 200,000 sq ft.

That's almost as bad as I thought it would be. Dang, that stuff is
expensive!

(approx)
40' x 30' = 1,200 sq-ft footprint

Side wall ....30'(long) x 12'(high) = 360 sq ft
Side wall ....30'(long) x 12'(high) = 360 sq ft
Back wall ...40'(long) x 12'(high) = 480 sq ft
Ceiling (?) 40' x 30' ish.......... = 1,200 sq ft

Total sq ft area = 2,400 sq ft
@ $0.25/sq foot = $600

Offer them the whole $600 ..."IF"...they'll double up (and go 6 inches) on
the ceiling - since 3" or 6" doesn't matter (much) at that point,
considering: prep, clean up, drive time, advertising, paperwork, materials,
inventories, insurance, maintenance, payroll, deposits, etc. get factored
into "the job". Forgot one - taxes. g

Now, you'll need to do something about that floor!

Let's see. The floor: 1,200 sq ft.

Plywood/particle board (37.5) sheets @ $10/sheet = $400
(2x4) or (2x3) x 8' sleeper boards @ $1.50 each = $250

Sleeper boards (flat) on 12" centers:
$6 = (4) x 8' boards (total offset "sleeper" length runs 30ft)
$6 x 41 ft = $250

$400 + $250 + $150 misc = $800 for a floor
(Misc: tar paper/roofing felt for the ground, poly for on top of the
sleepers, nails, pizza, beer, etc.)

Now we need to INSULATE that floor! It's only 1.5 inches deep under the
particle board top layer, and they're doing the rest of the hangar, anyway.
Hey, have them toss that into the $600 price, too. Let's blink first and
call it a $700 total.

And then there's that big (uninsulated) hangar door to consider! What to do?
What to do? What to do? g


Montblack
$1,500 insulated hangar with a new insulated (unpainted) floor, but without
factoring in hangar door options. Am I over budget yet? :-)