## Step 4: Planning: Calculating Costs

To work out a rough cost of the project ad how much material was required, I calculated the cost for a given area- Floor, walls and Ceiling.

Flooring pack number formula = (Length m x Width m)  ÷ A
where A = area a pack of chipboard flooring covers.

Floor Cost formula = (Length m x Width m)  ÷ A x P
where A = area a pack of chipboard flooring covers and P = the cost of the pack.

For example ((2.5m x 5m) ÷ 1.2m) x £6 = £62.50  (for  12.5m²) 10.416 packs*

Plasterboard number of sheets formula = (Height of wall m x Width of wall m) ÷ (length of plasterboard sheet x Width of plasterboard sheet)

Plasterboard wall cost formula = (Height of wall m x Width of wall m) ÷ (length of plasterboard sheet x Width of plasterboard sheet)  x C
where C is the cost for the sheet of plasterboard

For example (2.4m x 3m) ÷ (2.4m x 1.2m) = 2.5 sheets of plasterboard* Cost = £17.50

*Ensure you round up and not down for the number of packs of flooring or sheets of plasterboard and always be sure to buy an extra sheet of plasterboard as the off cuts can sometimes end up too small to use and these are part of the area of plasterboard you have calculated.

Dude, that's awesome! I'm 14 and I think we have space in our attic. I'll see if I can do this. Thanks!
Hope you're allowed! Good Luck! <br> <br>If you do get permission and crate your own pad, post some pictures and I'll send you a patch!
Great job and a awesome place to tinker, read or just relax! Also an excellent approach on how to divide the work, acquire materials and set goals.
Thank-You!!
Congrats on the conversion - incredible for your age. Hope you enjoy it
Thank-you!
Maybe you could add Option 1 later and put your bed in there and have the existing room as a living room or entertainment room or something.
It's funny you should say that, I'm<em> already</em> planning for it!<br> <br> Thanks!
Great project, and it's well done too. Do you find it gets very hot in there in summer? <br><br>One of my friends did this with his girlfriends council house, he went a bit further and cut out supporting joists. After 6 months or so, there was a definite noticeable sag in the roof from the road, then a few months later the roof partially collapsed. <br>Needless to say, she got evicted! :) <br><br>
One of the many reasons I didn't remove the beams to benefit from extra space! Thank-you for the compliment!! <br><br>P.S. summer has yet to arrive!!!
I see there is still a ton of unused - inaccessible space up there - you could box in a portion and inset drawers/cupboards into your walls to provide yourself clothing space without detracting from the usable floorspace in your room. if you slant the drawer facings you'll be able to snug them RIGHT against the walls themselves and not ruin your aesthetic. Beautiful room, great work there.
Thank-you, This is something i have/am considering. The space is alot smaller than it looks however,<br><br>Drwilson
I love the space shape, well done for creating it. It looks like the perfect hideaway.<br>Rules were made to be broken! So just don't tell the internet audience exactly where you live, and the planners will never find you! Just be safe in case of fire, get a smoke alarm up there.<br>Enjoy!
Haha, So true! Thank-you pinklizzy
Well done. :)
Thanks!!
I like your approach. BUT a couple of words of caution:<br><br>1. It is more than likely your in a modern house and the roof joists are roughly 60 x 40 These are not intended to be load bearing and so depending on the construction of the supporting (or not) walls below may not be structurally sound to carry a lot of weight. i.e. flooring, beds, you and other stuff your going to take up there.<br><br>First signs the ceiling cracks, then the wood creaks and in extreme cases the whole lot falls down. In winter the load on the joists and rafters may go up by a ton or more as snow gathers on the roof. So what is working now may give problems when the weather changes.<br><br>2. You may have broken planning regulations as they say any place that is inhabited MUST have a permanent staircase fitted and fire regulations say it must have a fire proof door separating the living areas and possibly another way of exiting the area in case of a fire. i.e. a fire escape. A loft ladder isn't good enough.<br><br>3. There are also minimum floor areas and height restrictions in the planning regulations<br><br>4. You may have invalidated your parents house insurance by doing this because of 1 and 2 and 3<br><br>I know I sound like a spoil sport and you have done a good job both in the attic and the rite up and you may well choose to ignore what I say, especially as you look to have done a very good job. again sorry to sound negative - don't let this put you off building projects just make sure you look into the relevant regulations before you go ahead.<br><br>Most attics would be expected to have a minimum of 270mm this is far above the standard rafters which makes the fitting of a floor difficult.<br><br>Your plasterboard will need insulating on the other side as will the tile side or it's going to get very cold or energy inefficient. up there.
Thank you for your comment. I am currently deciding whether to fit a window or not; My step dad works in windows. I agree about the fire safety, Fires just happen and we can never anticipate or prevent them, BUT we can have procedures in place to tackle them and deal with them - Potentially lifesaving.<br><br>Thanks!
Whoops Forgot to mention that i insulated the other side, I'll edit that in!<br><br>Thanks for the constructive criticism, and as for the regulations well, this if more of a storage space than living space, in the uk we have little snow and our neighbors have had a conversion using their rafter supports. Again thanks for th supportive criticism and positive comments,<br><br>Dr Wilson
Surely you would still need planning permission, I live in the UK and this doesn't look to conform with building regulations... im not saying you shouldn't have converted the attic, but perhaps posting it on the internet was a silly idea... Essentially if it doesn't apply to building regs and doesn't have the right certification it will invalidate the home insurance and will get the home owner in to a lot of trouble with the council. If part of a building project doesn't have the right backing, or planning consent, it will also make the future sale of the house very difficult.
i knew a guy who built a massive model railway in his loft (in the UK) then someone reported him. he had to take the whole thing down because he didnt have planning permission. lost a conciderable amount of money. was all because he had it published in a magazine. so i would be carefull about posting it up on here. <br><br>sorry for being so negative, excelent instructable though. :)<br>
Depending how he did it - that sounds odd.<br>If he built a &quot;dormer&quot; roof extension over a certain size of facing the road he'll have needed planning permission but there's absolutely nothing in planning law that requires anyone to get permission to put a layout in their roof space.<br>Unless I'm missing something key, your friend was given some extremely bad advice and lost his layout for nothing.<br><br>There's nothing about this instructable that would have needed planning permission. There are some issues with building regulations (particularly fire safety and insulation) but nothing that will mean anyone's going to turn up at the house and tell them to take it down.
Beware the Ministry of How singe. (it's spelt like that on the van! I'm very observant) Nice chill pad. Speaking from experience tho, I'd ask you to please be careful with the lamp and the draped fabrics.
Thanks! I'll hope not to make the same mistake!
Nicely executed, thanks for sharing. As to structural integrity- roof trusses are usually designed for at least 60% over load- you could check with builder for specifications, probably a non-issue unless you move a waterbed up there!
Yeah, not really an issue as the bed is an air bed and there is no heavy furniture up there. Thank-you!
looks like a nice little gameroom/hide-from-the-sibs hangout to me.
Hahaha thank-you