Decision record · revision 1
A 6 ft 11 in panel to the south-west
Record demo-mountain-deck-thin-air:1:side-shade-panel:2026:10:30:17. Read on 30th October 2026.
A solid panel about 6 feet 11 inches high and 9 feet 10 inches wide, standing 7 feet 3 inches to the south-west. Low sun arrives almost horizontally, and only something vertical stops it.
Baseline
Tight
Dinner outside · The table on the deck
Forecast
Tight
No extra hours this day
Across the year
tradeoff
This is a real seasonal trade: the status improves in 1 season and gets worse in 1.
Survey standing: Mapped: Shade, sky view and daily light are computed from the geometry on this plan. Unmeasured dimensions remain estimates, not verified measurements.
Real-world trial: none yet. Everything above is a forecast from the plan.
Buy nothing yetTry a reversible version at the place and recheck it before this goes out to price.
Design intent dimensions
| Height | 6 ft 11 in |
|---|---|
| Width | 9 ft 10 in |
| Distance from reading point | 7 ft 3 in |
| Bearing | 236° |
Four-season acceptance basis
| Season | Before | After | Hours | Controlling after |
|---|---|---|---|---|
| January | No | No | Hours not claimed | What it feels like |
| April | Works | Works | Hours not claimed | none |
| July | Works | Tight | Hours not claimed | What it feels like |
| October | Tight | Works | Hours not claimed | What it feels like |
This is a real seasonal trade: the status improves in 1 season and gets worse in 1.
Site controls this price depends on
| Control | Value | Provenance | Before ordering |
|---|---|---|---|
| The house | 19 ft high | You said so: You told us this, and it beats what the model worked out. | recorded |
| Deck rail | 3 ft 3 in high | Measured: Taken with a tape, a compass or a clock at the place. | recorded |
| The table on the deck | Point at 3 ft 11 in above ground; facing 260° | You said so: You told us this, and it beats what the model worked out. | recorded |
| The house upslope | 68 ft from the reading point; eye 17 ft 9 in above datum | You said so: You told us this, and it beats what the model worked out. | recorded |
Verification queue
Acceptance checks
- Re-run the reading for dinner outside at The table on the deck after installation and confirm the controlling failure is not worse than the forecast for this proposal.
- Check the completed geometry against the decision record before accepting substitutions: height 6 ft 11 in, width 9 ft 10 in, distance from reading point 7 ft 3 in, bearing 236°.
- Do not sign off the intervention from the installation-season result alone; this proposal has a known seasonal tradeoff in the annual comparison.
- Photograph the completed work from the original reading point and record any change to view, glare, privacy line or usable hours that the model did not predict.
Questions every bid should answer
- How will you verify: The hour the complaint is actually about?
- Measure the actual height available before ordering: this is sized at 6 feet 11 inches and about four inches either way changes whether it works.
- Mark 7 feet 3 inches out on the ground and stand there before committing. The geometry is only as good as that distance.
- Still unanswered: noise.
- What exact product, fixing/anchoring method and maintenance regime is included in the price?
- Which dimensions or assumptions in this record would your proposal change, and why?
- What is excluded from the price: structural design, footing design, drainage, electrical work, planning/permit work, boundary verification or underground-service locating?