1 x 33.7mm scaffolding tube 150cm - pullup bar - 20GBP
2 x 48.3mm scaffolding tube 90-100cm - dip bars - 20GBP
2 x 33.7mm wall clamp - 10GBP
4 x 48.3mm wall clamp - 30GBP
buying this off scaff shot is about 100, with 35 constituting for delivery! B&Q 130. this suggests i might be able to get a better price if I shop around in-person somewhere

197cm is enough for me to deadhang
someone recommended:
5x5 posts, 3m buried 0.8m for pullup bar = 2.2m height pullup
5x5 posts, 1.8 buried 0.6m for dip bars = 1.2m height dip
125cm height dip bar will allow 186cm individual to dip comfortably

get some rock dust as well for drainage of the post at the bottom of the hole

so maybe 2 x 2.8-3m posts for pullup, then 3 x 1.8m posts for dips

MK Grid Plus 20A Grid Intermediate Switch White with Colour-Matched Inserts (92060) is the switch i need for my first floor (after ground floor), i have added it here as a common place of DIY stuff
easy fill bonding putty to fix brick wall

money spent

materials

• 107gbp on 4x3m lengths + 2.4m length of 4x4 wood

  tools

• 72gbp - drill

  prep to-do

• visit hardware store and ask about whether they treat the wood
• buy the wood and walk it home
• buy drill suitable for wood screws (and hopefully more than that)
• buy postcrete (PRIORITY 3)
• buy level (PRIORITY 3)
• buy tubing (PRIORITY 3)
• buy heavy duty bin bags (PRIORITY 3)
• buy spade and other digging equipment (PRIORITY 2)
• will it thread through the post or use screws? how long will the screws last. buy tubing, call scaffolding supplies limited (potential 50gbp), call local scaffolders with hi, could I buy some scaffolding tubing off you? I was looking for 1x33.7mm tubes with 2 same-size wall flange clamps, 2x48.3mm tubes with 4 same-size wall flange clamps, used would work for me (PRIORITY 1)

  tube hole strat

  Two parallel lines, drawn with a speed square or compass whatever, diagonal lines to find the centre, compass feom teh centre set to the radius of the tube to find the cut outline, in my case do not cut pass the on or beyond the pencil line only within the pencil line. Took some measurements and i think i will need 41mm hole roughly, thinking of using 8mm brad bit around yhe edges then spade bit in the middle.

3.1cm on the pull post, 6.5cm hopefully on the dip post, maybe 6 at least

concrete

pricing

Ballast, 22.5kg major bag
Wickes
£4.10 (£0.18/kg) (Wickes)
All-in ballast, 25kg
B&Q
£9.36/bag in 5-packs, £6/bag in 20-packs (DIY)
GP cement, 25kg
B&Q
£7.50 (DIY)
Mastercrete, 25kg
Wickes
£8.40 (Wickes)
Your job costed up
Postcrete, 20 bags at shed price: £150. At a fencing/timber merchant (~£6/bag): ~£120.
Cement + ballast: 15 Wickes ballast bags (£61.50) + 3 B&Q cement (£22.50) = £84. All from Wickes: £87.

hole type 1

70cm depth 30cm diameter 4x4 post
concrete vol = hole vol - post vol
= 15750pi - 7000
= 42480cm^3
= 0.04248m^3 (divided by a million)
mult by post # (3) = 0.12744m^3

hole type 2

90cm depth
~0.053 - 0.056m^3

collar for crete’d post

~0.0075m^3

total

taking midpoints where necessary:
total = 0.04248 x 3 + 0.0545 + 0.0075
total = 0.18944m^3
wickes probably cheapest
15 22.5kg ballast bags (4.10 ea) for 61.50 total
3 mastercrete (8.40ea) 25.20total
86.7 all in + 2.50 on fuel

build

• filler and sand posts
• spray tubing
• dig 2 0.8m hole
• coach screw smaller cut to bigger 4x4
• find level lineup for tube
• hole saw for making the holes and then coach screw the tube in through bolt it to the wood, need to make it all lined up, DOMT FORGET TO PUT THE WASHER ON THE BOLT
• lower posts into ground and postcrete them
• repeat steps for dip posts
• attach post toppers at some point

  questions

• can i dig on multiple days? I’d assume yes and just cover the holes with something maybe. holes will become a bit shit and affect the ground around them so no