RDLC Sizing Reference

Unit Conversions

Unit	cm equivalent
11 pt (standard row)	≈ 0.388 cm
1 pt	≈ 0.03528 cm
1 cm	28.346 pt

Standard Measurements

Element	Value
Row height (11 pt)	0.388 cm
Row spacing between rows	0.39 cm
Minimum bottom margin in section	0.167 cm

Height Calculation Walkthrough

Scenario: PageHeader already has a field at Top=4.39469 cm. Adding a new field below it.

New field Top    = 4.39469 + 0.39      = 4.78469 cm
New field Height = 11pt                ≈ 0.388 cm
Bottom margin                          = 0.167 cm (minimum)

New Section Height = 4.78469 + 0.388 + 0.167 = 5.33969 cm

Round to 5 decimal places → 5.33969cm (or adjust to match existing precision, e.g. 5.33309cm).

Page Width Reference

Format	Page Width	Left Margin	Right Margin	Available Body Width
A4 Portrait	21 cm	1.41111 cm	1.41111 cm	18.17778 cm
A4 Landscape	29.7 cm	1.41111 cm	1.41111 cm	26.87778 cm
Letter Portrait	21.59 cm	1.495 cm	1.495 cm	18.6 cm

Margins may vary per report. Always read <LeftMargin> and <RightMargin> from the actual RDLC file before calculating.

Proportional Column Reduction Example

Current Tablix width: 18.5 cm
Available width: 18.17778 cm
Reduction factor: 18.17778 / 18.5 = 0.9826

Column	Original	Reduced (× 0.9826)
Col A	3.0 cm	2.9478 cm
Col B	5.0 cm	4.913 cm
Col C	4.0 cm	3.9304 cm
Col D	6.5 cm	6.3869 cm
Total	18.5 cm	18.1781 cm ✅