Demo by Drop In Labs · shown for a sample company with illustrative rates · no contact details are collected · settings and jobs cannot be changed here
14 WALKER ST, WALKERVALE QLD 4670Report rnBfDrM6 · 2026-09-30
Aerial

Top view. Queensland Government aerial imagery (6 cm, 2022) where available, otherwise satellite. Lot 27/RP13453.

ABCDEFGHN5 m

Measurements

Total roof area
212 m²
Total roof facets
8
Predominant pitch
6°
Number of storeys
2
Total ridges / hips
19.2 m
Total valleys
2.6 m
Total barges
17.4 m
Total eaves
38.2 m

Prepared for

Sample Roofing Co. estimating
Estimate $46,195 to $50,789 inc GST

How it was derived

Unreviewed draft. Outline from satellite tracing. Roof planes fitted through the Queensland Government 2016 laser survey points classified as building; facets and edge lines are where those fitted planes meet, with boundaries inferred where points are sparse. Material, storeys and condition read from the 2022 aerial and street photos. Facets cover 95% of the outline. Not a survey; an estimator confirms the address, buildings and geometry on site before ordering.

Contents

  1. Cover and summary
  2. Images
  3. Length diagram
  4. Pitch diagram
  5. Area diagram
  6. Notes diagram
  7. Report summary
Sample Roofing Co. · a Drop In Labs prototype · Derived from the Queensland Government 2016 laser survey and public aerial imagery. Unreviewed draft; confirm on site.Page 1
14 WALKER ST, WALKERVALE QLD 4670Report rnBfDrM6 · 2026-09-30

Images

Aerial

Top view. Queensland Government imagery (6 cm, 2022) where available, otherwise satellite.

Street

Street view. We do not hold oblique aerials, so material, storeys and condition are read from the street.

Sample Roofing Co. · a Drop In Labs prototype · Derived from the Queensland Government 2016 laser survey and public aerial imagery. Unreviewed draft; confirm on site.Page 2
14 WALKER ST, WALKERVALE QLD 4670Report rnBfDrM6 · 2026-09-30

Length diagram

Total line lengths: ridges 4.1 m, hips 15.1 m, valleys 2.6 m, barges 17.4 m, eaves 38.2 m, wall abutments 30.1 m. Lengths are plan lengths in metres, rounded to 0.1 m; segments under 1.2 m are not labelled.

1.22.51.81.94.33.24.64.35.94.22.02.51.91.53.11.22.711.43.53.51.310.83.03.52.010.6N5 mRidge 4 mHip 15 mValley 3 mEave 38 mBarge 17 mWall / step 30 m
Sample Roofing Co. · a Drop In Labs prototype · Derived from the Queensland Government 2016 laser survey and public aerial imagery. Unreviewed draft; confirm on site.Page 3
14 WALKER ST, WALKERVALE QLD 4670Report rnBfDrM6 · 2026-09-30

Pitch diagram

Pitch in degrees from horizontal per facet, from the fitted laser planes. Arrows point down the slope. Facets under 2° are shown as flat.

A6°B30°C29°D29°E29°F9°G9°H9°N5 mRidge 4 mHip 15 mValley 3 mEave 38 mBarge 17 mWall / step 30 m
PitchPlan areaTrue areaShare
6°73 m²73 m²39%
29°67 m²76 m²36%
9°31 m²31 m²16%
30°18 m²21 m²10%
Sample Roofing Co. · a Drop In Labs prototype · Derived from the Queensland Government 2016 laser survey and public aerial imagery. Unreviewed draft; confirm on site.Page 4
14 WALKER ST, WALKERVALE QLD 4670Report rnBfDrM6 · 2026-09-30

Area diagram

Plan area per facet in square metres. Total plan area 198 m² over 8 facets; true (sloped) area 212 m².

A73 m²B18 m²C26 m²D24 m²E17 m²F10 m²G3 m²H18 m²N5 mRidge 4 mHip 15 mValley 3 mEave 38 mBarge 17 mWall / step 30 m
Sample Roofing Co. · a Drop In Labs prototype · Derived from the Queensland Government 2016 laser survey and public aerial imagery. Unreviewed draft; confirm on site.Page 5
14 WALKER ST, WALKERVALE QLD 4670Report rnBfDrM6 · 2026-09-30

Notes diagram

Facets are lettered for reference on site. Space below for the estimator's notes.

ABCDEFGHN5 m
Sample Roofing Co. · a Drop In Labs prototype · Derived from the Queensland Government 2016 laser survey and public aerial imagery. Unreviewed draft; confirm on site.Page 6
14 WALKER ST, WALKERVALE QLD 4670Report rnBfDrM6 · 2026-09-30

Report summary

Areas per pitch

PitchPlan areaTrue areaShare
6°73 m²73 m²39%
29°67 m²76 m²36%
9°31 m²31 m²16%
30°18 m²21 m²10%

Sheet allowance table

Allowance0%5%10%14% · recommended15%
Sheet area212 m²223 m²233 m²242 m²244 m²
Lineal metres at 762 mm cover279 lm292 lm306 lm318 lm320 lm

Sheet area only, at CUSTOM ORB 0.42 cover width. The recommended column is the engine's waste allowance for this roof shape; the priced take-off orders 356 lm, including the pairing allowance on raked planes and ordered-length rounding. Cappings, valley trays and flashings are additional, from the length totals. A budgeting allowance, not a cut list.

Lengths, areas and pitches

Total roof area (true)
212 m²
Plan area
198 m²
Roof facets
8
Predominant pitch
6°
Storeys
2
Ridges
4.1 m (3)
Hips
15.1 m (4)
Valleys
2.6 m (2)
Eaves (gutter line)
38.2 m (6)
Barges
17.4 m (11)
Wall abutments / steps
30.1 m (12)
Sheets
79 × CUSTOM ORB 0.42
Drawn from
95% of the outline, laser survey 2016

Property

Latitude / longitude
-24.877231, 152.360883
Distance to surf
12005 m
Wind class (AS 4055 method)
C1 provisional, review required
Existing roof
metal

Notes

  • 2.6 m of valley measured from the laser survey.
  • No change to the roof seen between the 2016 and 2022 imagery.
Sample Roofing Co. · a Drop In Labs prototype · Derived from the Queensland Government 2016 laser survey and public aerial imagery. Unreviewed draft; confirm on site.Page 7