# Step-by-step guides

> These guides show how to do the key tasks for a home: measure the facing with a phone, set polarity on a plan, digitize a home from a photo, LiDAR or a laser meter, read the 9-section analysis, fix feng shui without demolition, find the water mouth, lay out a tube house and prepare before meeting an architect. Each guide has clear steps, common mistakes and questions.

## Full guides

- [How to measure your home's direction with a phone](https://myhomecheck.ai/learn/guides/measure-house-direction/index.md): Measure your home's facing direction with a phone: where to stand, how to hold it, how to avoid metal interference and why to record degrees, not names.
- [What setting polarity is and how to do it right](https://myhomecheck.ai/learn/guides/set-polarity-correctly/index.md): Set polarity on a floor plan correctly: find the true centre, enter the facing degree, check the main door, and avoid errors that skew every feng shui finding.
- [What to prepare before meeting an architect](https://myhomecheck.ai/learn/guides/before-meeting-an-architect/index.md): A checklist before your first architect meeting: land papers, measurements and facing degree, family needs, site photos and birth years — so the meeting leads to decisions.
- [How to read the 9-section feng shui analysis](https://myhomecheck.ai/learn/guides/read-the-9-part-reading/index.md): How to read Home Check's 9-section feng shui analysis: which sections first, what the levels mean, the three tiers of actions, read-aloud and PDF.
- [What the water mouth is and how to find it](https://myhomecheck.ai/learn/guides/find-the-water-mouth/index.md): The water mouth is where water leaves a site. How to find it at the grand, middle and small scales on a map: degree, mountain and confidence.
- [Fixing feng shui without demolition](https://myhomecheck.ai/learn/guides/fix-feng-shui-without-demolition/index.md): Gentle feng shui fixes: move and turn furniture, change the bed head, swap room uses, break door alignments — and when a re-layout is really needed.
- [Tube houses 4–5 m wide: a bright, airy layout](https://myhomecheck.ai/learn/guides/narrow-tube-house-layout/index.md): Laying out a 4–5 m tube house for light and air: stairs with a light well mid-house, compact bathrooms, a one-side corridor, rear ventilation — with codes.
- [Digitize a paper floor plan from a photo](https://myhomecheck.ai/learn/guides/digitize-a-paper-plan/index.md): Turn a paper, printed or scanned plan into a digital one: shoot it clearly, one photo per floor, confirm what the assistant reads, then set polarity.
- [LiDAR-scan a whole home into a floor plan](https://myhomecheck.ai/learn/guides/lidar-scan-a-whole-home/index.md): LiDAR-scan a whole home with a LiDAR iPhone or iPad: prepare the rooms, walk one loop the right way, check the 3D model, then go straight to the 2D plan.
- [Measure a home with a Bluetooth laser meter](https://myhomecheck.ai/learn/guides/measure-a-home-with-a-laser/index.md): Measure a home with a Bluetooth laser meter: activate and connect it, measure outer walls first, then details — each reading goes into the plan.

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Original page: https://myhomecheck.ai/learn/guides  
Other languages: [Tiếng Việt](https://myhomecheck.ai/vi/tri-thuc/huong-dan/index.md) · [中文](https://myhomecheck.ai/zh/learn/guides/index.md)  
Updated: 2026-10-25