Home > Medium height decks 700-1500mm > Deck design 503-2 & Deck design 503R-2 > Deck design costing 503-2 & 503R-2 no pergola 7.5m long 6.0m wide Bill of materials for deck shape 503 & 503R
| Design no: | 503 & 503R |
| Sub option: | 2 | | Pergola: | No | | Length: | 7.5m |
| Width: | 6.0m | | Height: | 1000mm |
| Handrail type: | A | |  |
This ROBO Deck Designer makes the creation of NZ deck plan drawings a breeze. By clicking on the form controls with this website it is possible to create a working deck plan drawing of a deck within minutes with a complete list of materials. By using this service you can create a working deck drawing with limited design knowledge to the New Zealand (NZ) building code. To use the online tool the preview drawings are free, if you decide to go ahead and purchase a set of drawings the cost is from $299.00 + GST. |
Timber
| Timber | Bunnings | Placemakers | Mitre10 | Others | |
| Description | QTY | Unit | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Comments |
| 100x75mm H4 Timber | 22.93 | M | 9.42 | 216.00 | POA | | | | | | 5% wastage included |
| 190x45mm SG8 H3.2 Timber | 208.03 | M | 18.02 | 3748.70 | POA | | | | | | 5% wastage included |
| 140x45mm SG8 H3.2 Timber | 39.38 | M | 12.17 | 479.25 | POA | | | | | | 5% wastage included |
| 90x45mm SG8 H3.2 Timber | 37.01 | M | 10.88 | 402.67 | POA | | | | | | 5% wastage included |
| 100x100mm H4 Timber | 28.54 | M | 11.46 | 327.07 | POA | | | | | | For minimum waste for a handrail post either a 2.7m or 2.4m length would be suitable. Please ensure the length available meets you requirements. |
| 45x45mm H3.2 Gauged Timber | 121.55 | M | 4.32 | 525.10 | POA | | 5.74 | 697.70 | | | 5% wastage included |
Timber Piles
| Timber Piles | Bunnings | Placemakers | Mitre10 | Others | |
| Description | QTY | Unit | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Comments |
| 125x125x1200mm H5 Timber pile | 12 | EA | 36.84 | 442.08 | POA | | 39.00 | 468.00 | | | |
Decking
| Decking | Bunnings | Placemakers | Mitre10 | Others | |
| Description | QTY | Unit | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Comments |
| 90x32 H3.2 Merch grade griptread decking | 508.48 | M | 4.33 | 2201.72 | POA | | | | | | |
Fasteners
| Fasteners | Bunnings | Placemakers | Mitre10 | Others | |
| Description | QTY | Unit | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Comments |
| M16 Wedge anchor for concrete fastening, SS304 min. grade | 8 | EA | | | | | | | 18.40 | 147.20 | From Read Bros. |
| M12x240mm Bolt and nut, SS304 min. grade | 62 | EA | | | 12.90 | 799.80 | 11.56 | 716.72 | | | If any of these bolts are used for attaching a deck to a dwelling, please check on the length. |
| M12x150mm Bolt and nut, SS304 min. | 6 | EA | | | | | 6.08 | 36.48 | | | |
| M12x300mm Bolt and nut, SS304 min. | 4 | EA | | | 16.58 | 66.32 | 13.40 | 53.60 | | | If any of these bolts are used for attaching a deck to a dwelling, please check on the length. |
| M12x150mm Coach screw, SS316 | 20 | EA | 6.15 | 123.00 | | | 6.48 | 129.60 | | | |
| M12x200mm Coach screw, SS316 grade | 110 | EA | 7.58 | 833.80 | 9.84 | 1082.40 | 8.00 | 880.00 | | | |
| M12 Square Washer, SS304 min. grade | 274 | EA | 3.54 | 969.96 | 4.14 | 1134.36 | 2.74 | 750.76 | | | |
| M16 Square Washer, SS316 grade | 8 | EA | | | 4.14 | 33.12 | | | | | |
Concrete
| Concrete | Bunnings | Placemakers | Mitre10 | Others | |
| Description | QTY | Unit | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Comments |
| Concrete | 0.43 | M3 | | | | | | | 220.00 | 94.60 | Very rough estimate. Price varies considerably depending on location and quantity |
Rebar
| Rebar | Bunnings | Placemakers | Mitre10 | Others | |
| Description | QTY | Unit | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Comments |
| D12x6M Grade 300E reinforcing bar | 12.60 | M | 2.76 | 34.78 | POA | | | | | | 5% wastage included |
DPC
| DPC | Bunnings | Placemakers | Mitre10 | Others | |
| Description | QTY | Unit | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Comments |
| 500mm x 30M Damp proof course | 7.88 | M | | | | | | | 2.31 | 18.20 | 5% wastage included |
Galvanised Nails
| Galvanised Nails | Bunnings | Placemakers | Mitre10 | Others | |
| Description | QTY | Unit | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Comments |
| 75x3.15mm Decking nails, galvanised | 16.31 | Kg | 15.75 | 256.88 | 16.72 | 272.70 | 25.99 | 423.90 | | | 5% wastage included |
| 100x4mm Nails, galvanised | 8.91 | Kg | 11.94 | 106.39 | 15.63 | 139.26 | 11.80 | 105.14 | | | 5% wastage included |
Stainless Steel Nails
| Stainless Steel Nails | Bunnings | Placemakers | Mitre10 | Others | |
| Description | QTY | Unit | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Comments |
| 30x3.15mm Nails, Lumberlok, stainless steel | 3.67 | Kg | 75.41 | 276.75 | 100.58 | 369.13 | 87.96 | 322.81 | | | 5% wastage included |
Nail Plates
| Nail Plates | Bunnings | Placemakers | Mitre10 | Others | |
| Description | QTY | Unit | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Unit Cost | Ext Cost | Comments |
| Lumberlok sheet brace strap 200mm, stainless steel | 90 | EA | 3.55 | 319.50 | 4.20 | 378.00 | | | | | |
| 160mm Ceiling tie, left hand, stainless steel | 78 | EA | 2.85 | 222.30 | | | 3.10 | 241.80 | | | |
| 160mm Ceiling tie, right hand, stainless steel | 78 | EA | 2.85 | 222.30 | | | 3.10 | 241.80 | | | |
Lowest combined price for currently priced items: $12587.72*This total is calculated using the lowest available price shown for each priced item in the bill of materials.Please take into considerations the following points below
- Where a supplier price is shown, click on the unit cost to view more information about the product.
- All prices include GST (goods and services tax at 15%).
- Actual purchasing costs may be higher than the calculated material cost because some products are sold only in fixed pack sizes or quantities. For example, if nails are sold in 2 kg boxes and the calculated requirement is 5 kg, you may need to purchase 6 kg.
- Post lengths are approximate. Actual requirements may vary depending on hole depth, ground levels and the finished deck height. Additional length may also be required to allow piles to be trimmed after installation.
- If your design involves a pergola, extra timber has been included at the end of to allow for trimming during construction.
- No allowance has been made for wastage of bolts, nuts or washers.
- The concrete volume is a very rough estimate, this varies greatly on the soil type, hole size and depth.
- No allowance has been made for temporary bracing or timber used to hold piles in position while concrete is being placed and cured.
- When opening supplier product links, we recommend waiting at least 10 seconds between opening links from the same supplier. Opening a large number of links in quick succession may result in temporary access restrictions from the supplier's website.
- No allowance has been made for post caps or post capping. These may be made from suitable leftover timber, stainless steel flashing or proprietary post caps.
- Material prices last updated on Wednesday 16 September 2026.
Disclaimer: Whilst this website contains a significant amount of information on the design of decks which has been produced with the highest level
of professional care, ROBO Deck Designer, ROBO Design Solutions or Paul Roberts (the developer of this website) does not accept any responsibility for
the accuracy of the information on this website. This website is intended as a guide only, please refer to the New Zealand building code for the
appropriate regulations. |
