estimating hardwood

xoxjt86 · Post by **xoxjt86** » Tue Jan 06, 2009 8:06 pm

i'm planning a few ambitious hardwood projects, the first hurdle's got me really!

is there an easy way to work out the amount needed for an exterior door? (or any job for that matter)! not used to workin in cubic ft!!

big-all · Post by **big-all** » Tue Jan 06, 2009 9:14 pm

draw your full sized rod[plan]

if you are buying preplaned order the stock size you want and add 20 to 30% [to cover spares as below]

if you are working your own timber just send/take your cutting list to the wood yard and sort it out from there making shure you have enough extra to cover an extra style and the biggest rail plus any panels

dont forget to allow for the horns and tennons in your cutting list

Tryanything · Post by **Tryanything** » Wed Jan 07, 2009 12:12 am

Multiply the width by the thickness and by the lengh in inch's of the
timbers required and then divide it by 1728 to give you the quantity in
cubic feet

Example

6'-6" x 2'-6" x 2" door with

2 no 4" x 2" styles = 13'-0"= 156" x 4" x 2" = cubic inch's 1248
1 no 4" x 2" head = 2'-6"= 30" X 4" X 2" = cubic inch's 240
1 no 8" x 2" bottom rail = 2'-6"= 30" X 8" X 2" = cubic inch's 480
1 no 8" x 2" middle rail = 2'-6"= 30" X 8" X 2" = cubic inch's 480

Total 2448

Divide by 1728 which is cubic inch's in a cubic foot

2448 divided by 1728 = 1.416 cubic feet

xoxjt86 · Post by **xoxjt86** » Wed Jan 07, 2009 12:34 am

thanks fellas!! this site is great, only now ive got no excuses for doin the work when she asks!!

Tryanything · Post by **Tryanything** » Wed Jan 07, 2009 12:50 am

Try here if you get stuck for one

http://www.excuses.co.uk/