Actually this is for a friend who needs to know how many linear square feet of linoleum she should purchase. she went to a store and the guy was so rude he just said "$10 a linear square foot. He would not help her. She’s in her 70’s.
So here are her specs:
Need 21 pieces for steps:
Length - 31" each step
Width - 9-l/4" back of step -each step
7" front of step - each step
So how many square linear feet of linoleum should she buy?
Tell her to find another place that isn’t staffed by jerks. In order to figure out how much she needs, one has to know what the standard width of roll flooring is (I don’t know the answer to that.) A competent salesman would at the very least look at the measurements of the floor/stairs and advise from there.
Linoleum is normally sold by the linear foot because it is a ‘stock’ width roll. (Ten or twelve foot wide rolls.) I need a little more info… You say ‘21 pieces’ Counting the steps only, how many are there? You said “Need 21 pieces for steps:”, is that twenty one steps?
If so, then figure 9-1/4" + 7" = 16-1/4" x 21 = 341.25"
341.25" divided by 12" = 28.44’ or 28’ 6" (rounded up)
If the roll of linoleum is 10’, then you would need 8 linear feet. Make sense?
Sorry (to the OP) for my flippant earlier post. jz78817 is quite right - we could calculate the total area required from the figures you’ve quoted, but the unknown factor is how much spare will be required, as constrained by the width of the roll.
jz78817 is also right in saying that, as the paying customer, it’s not unreasonable to expect the store to do the calculations.
I don’t have the magic number for you, but who will be doing the installation? That is the person who should provide the measurements. When I’ve had flooring done the installer insists on doing his own measurements because he is going to know how to account for waste, matching, etc., etc.
Regardless, I would definitely find another store.
(Second, just as far as terminology, you either want linear feet, or square feet, but there is not such thing as linear square feet.)
As a General Contractor and carpenter, I would recommend something other than linoleum to cover stair treads. Linoleum can become quite slippery when wet and stairs get more wear than a level floor.
A non slip covering would be your better option. (Especially so, seeing as how the homeowner is an elderly person.)
Calling around to some flooring companies and seeing if you can find one that will give free estimates, might also be an option. (Not sure what kind of ‘budget’ you’re working with.)
