4 strokes
                                                    
                        Jouyou kanji
            Taught in 6th grade
    
                                                    JLPT exam level N1
                                            shaku, Japanese foot, measure, scale, rule
Kun'yomi
- さ - し - ruler 
On'yomi
- シャ - ク - shaku (unit of distance approximately equal to 30.3 cm) ②rule ③length 
- セキ 
Character Breakdown
References
| Unicode hex code | 5C3A | 
| JIS X 0208 | 1-28-60 | 
| Nelson, A. Classic Nelson | 1377 | 
| Haig, J. New Nelson Japanese-English Character Dictionary | 1404 | 
| Halpern, J. New Japanese-English Character Dictionary | 3440 | 
| Halpern, J. Kodansha Kanji Dictionary | 4248 | 
| Halpern, J. Kanji Learners Dictionary (Kodansha) | 2146 | 
| Halpern, J. Kanji Learners Dictionary (Kodansha), 2nd edition (2013) | 2896 | 
| Heisig, J. Remembering The Kanji | 1070 | 
| Heisig, J. Remembering The Kanji, Sixth Ed. | 1151 | 
| Gakken A New Dictionary of Kanji Usage | 1842 | 
| O'Neill, P.G. Japanese Names | 96 | 
| O'Neill, P.G. Essential Kanji | 1781 | 
| Morohashi Daikanwajiten | 7632 | 
| Henshall, K. A Guide To Remembering Japanese Characters | 884 | 
| Spahn and Hadamitzky Kanji and Kana | 1895 | 
| Spahn and Hadamitzky Kanji and Kana (2011 edition) | 2071 | 
| Hodges & Okazaki Japanese Kanji Flashcards | 1227 | 
| Henshall & De Groot A Guide To Reading and Writing Japanese, 3rd ed. | 895 | 
| Kask, A. Tuttle Kanji Cards | 830 | 
| Nishiguchi & Kono Kanji in Context | 762 | 
| Kodansha Kodansha Compact Kanji Guide | 521 | 
| Maniette, Y. Les Kanjis dans la tete | 1079 | 
| Tuttle Dictionary Descriptor Code | 3r1.1 | 
| Four corner code | 7780.7 | 
| De Roo Code | 3762 |