| Forum Home | ||||
| PC World Chat | ||||
| Thread ID: 146399 | 2018-07-23 10:45:00 | Question for the carpenters | Tony (4941) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1451921 | 2018-07-23 10:45:00 | I'm re-laying a deck with 19mm Vitex hardwood. I'm using 60mm decking nails that are 3.15 mm dia. When pre-drilling the nail holes, what size drill should I use? And yes I know about nail guns and using screws instead, but this is what I'm stuck with. As always, all suggestions gratefully received. TIA |
Tony (4941) | ||
| 1451922 | 2018-07-23 11:14:00 | 6.1.1 FIXING METHOD Align profiles perpendicular to joists. Pre-drill all fixing holes, using a drill bit that is slightly smaller than the screw or nail shank, to reduce the risk of splitting and ensure a snug fit. Fixing placement for a 90mm wide board to be 12.5mm in from each edge of profile, and for a 135mm, or wider, board, 15mm in from each edge of profile. Timspec Ltd recommends using stainless steel, countersunk twin thread decking screws for all decking profiles. Fixings must be long enough to achieve a minimum 30mm framing penetration. timspec.co.nz |
tweak'e (69) | ||
| 1451923 | 2018-07-23 12:00:00 | www.youtube.com | bevy121 (117) | ||
| 1451924 | 2018-07-23 12:12:00 | I normally use 2 or 2.5mm, basically above 50% diameter, less than 75%. I don't recommend nailing hardwood however, but it seems you're stuck in your ways. |
Kame (312) | ||
| 1451925 | 2018-07-23 19:08:00 | I normally use 2 or 2.5mm, basically above 50% diameter, less than 75%. I don't recommend nailing hardwood however, but it seems you're stuck in your ways. It's not that I'm stuck in my ways. Half of the deck was re-done about 5 years ago and that was nailed, so I want the look to be consistent. I've just totally re-done another deck and there I used screws. Thanks for the advice. |
Tony (4941) | ||
| 1451926 | 2018-07-23 19:44:00 | Halfway down this page have a read of the PDF for Vitex. I normally use a drill bit just smaller than the nail, never measure them but if the nail says 3.2 on the box I just use a 3mm. Who has time on site for measuring that sort of stuff. Its carpentry not engineering. Here (www.jsctimber.co.nz) |
gary67 (56) | ||
| 1451927 | 2018-07-23 21:46:00 | Halfway down this page have a read of the PDF for Vitex. I normally use a drill bit just smaller than the nail, never measure them but if the nail says 3.2 on the box I just use a 3mm. Who has time on site for measuring that sort of stuff. Its carpentry not engineering. Here (www.jsctimber.co.nz) Absolutely right, but if I'm just setting things up and I have a container of sized drill bits available, I might as well use the most suitable size. |
Tony (4941) | ||
| 1451928 | 2018-07-24 06:02:00 | Can robertson screws be used? I seen a chippie use those square drive screws for quickly zipping them in with a drill driver on plywood floor board in our hot water cupboard. They can also be quickly removed...and I seen nails lift...unless if threaded...like screws | kahawai chaser (3545) | ||
| 1451929 | 2018-07-24 06:19:00 | Can robertson screws be used? I seen a chippie use those square drive screws for quickly zipping them in with a drill driver on plywood floor board in our hot water cupboard. They can also be quickly removed...and I seen nails lift...unless if threaded...like screws On the other deck I used Titan double threaded decking screws that had a square (i.e. Robertson) drive. On this deck I am using decking nails that have annular grooves that help prevent lifting. The old deck I have replaced had ordinary galvanised nails and they were showing no sign of lifting (just the timber rotting. :)) |
Tony (4941) | ||
| 1451930 | 2018-07-24 07:26:00 | Can robertson screws be used? I seen a chippie use those square drive screws for quickly zipping them in with a drill driver on plywood floor board in our hot water cupboard. They can also be quickly removed...and I seen nails lift...unless if threaded...like screws Square drives are used pretty much exclusively in NZ over everything else. However a lot of the double thread decking screws are now a star drive. Square drives can be used in a collated screw gun as can phillips (used exclusively for Gib) usually Phillips No1 which is totally different to pozi drives. When I first came over the local builders kept telling me Pozi drives were crap, they rounded out etc, etc. Then I pointed out they were using Phillips bits got them to try my Pozi bits and they had to eat humble. Using a nail gun is a poor idea the boards often split and you need a soft nose sometimes called a decking nose on the nail gun. |
gary67 (56) | ||
| 1 | |||||